…nt env (linkerd#11283)

This PR changes a variety of things:
1. Changes value `collector.config` from a string to an object to support field level merging/changing without having to copy/paste the entire unchanged portion of the config.
2. Changes the default `collector.config` for sensible out of the box Linkerd tracing use-case:
    1. Only `opencensus` receiver (the format `linkerd-proxy` emits when configured for tracing)
    2. `resource` processor that maps the Pod name and namespace labels `linkerd-proxy` sets on injected Pods to the fields the `k8sattributes` processor expects for looking up the trace's source Pod.
    3. `k8sattributes` processor for decorating all traces with K8s metadata.
3. Standardizes `image.pullPolicy` behavior across all components and defaults to absent/null `imagePullPolicy` such that the K8s cluster configuration is used.
4. Adds collector RBAC needed for `k8sattributes` to lookup trace source K8s workloads
5. Adds collector ConfigMap checksum to rollout new Pod(s) when config is changed. 
6. Adds/parameterizes the collector container command with value `collector.command`.
7. Changes collector image from [opentelemetry-collector](https://github.com/open-telemetry/opentelemetry-collector) to [opentelemetry-collector-contrib](https://github.com/open-telemetry/opentelemetry-collector-contrib) which includes additional connectors, exporters, extensions, processors, receivers.
8. Adds value `collector.env` for additional collector Deployment environment variables.

Signed-off-by: Cameron Boulton <[email protected]>

…nt env (linkerd#11283)

This PR changes a variety of things:
1. Changes value `collector.config` from a string to an object to support field level merging/changing without having to copy/paste the entire unchanged portion of the config.
2. Changes the default `collector.config` for sensible out of the box Linkerd tracing use-case:
    1. Only `opencensus` receiver (the format `linkerd-proxy` emits when configured for tracing)
    2. `resource` processor that maps the Pod name and namespace labels `linkerd-proxy` sets on injected Pods to the fields the `k8sattributes` processor expects for looking up the trace's source Pod.
    3. `k8sattributes` processor for decorating all traces with K8s metadata.
3. Standardizes `image.pullPolicy` behavior across all components and defaults to absent/null `imagePullPolicy` such that the K8s cluster configuration is used.
4. Adds collector RBAC needed for `k8sattributes` to lookup trace source K8s workloads
5. Adds collector ConfigMap checksum to rollout new Pod(s) when config is changed.
6. Adds/parameterizes the collector container command with value `collector.command`.
7. Changes collector image from [opentelemetry-collector](https://github.com/open-telemetry/opentelemetry-collector) to [opentelemetry-collector-contrib](https://github.com/open-telemetry/opentelemetry-collector-contrib) which includes additional connectors, exporters, extensions, processors, receivers.
8. Adds value `collector.env` for additional collector Deployment environment variables.

Signed-off-by: Cameron Boulton <[email protected]>
Signed-off-by: Adam Shaw <[email protected]>

This edge release updates the proxy's dependency on the `rustls` library to
patch security vulnerability [RUSTSEC-2023-0052]  (GHSA-8qv2-5vq6-g2g7), a
potential CPU usage denial-of-service attack when acceting a TLS handshake from
an untrusted peer with a maliciously-crafted certificate. Furthermore, this
edge release contains a few improvements to the control plane and jaeger
extension Helm charts.

* Addressed security vulnerability [RUSTSEC-2023-0052] in the proxy by updating
  its dependency on the `rustls` library
* Added a `prometheusUrl` field for the heartbeat job in the control plane Helm
  chart (thanks @david972!) ([#11343]; fixes [#11342])
* Introduced support for arbitrary labels in the `podMonitors` field in the
  control plane Helm chart (thanks @jseiser!) ([#11222]; fixes [#11175])
* Added support for config merge and Deployment environment to
  `opentelemetry-collector` in the jaeger extension (thanks @iAnomaly!)
  ([#11283])

[#11283]: #11283
[#11222]: #11222
[#11175]: #11175
[#11343]: #11343
[#11342]: #11342

Signed-off-by: Matei David <[email protected]>

* edge-29.9.3

This edge release updates the proxy's dependency on the `rustls` library to
patch security vulnerability [RUSTSEC-2023-0052]  (GHSA-8qv2-5vq6-g2g7), a
potential CPU usage denial-of-service attack when acceting a TLS handshake from
an untrusted peer with a maliciously-crafted certificate. Furthermore, this
edge release contains a few improvements to the control plane and jaeger
extension Helm charts.

* Addressed security vulnerability [RUSTSEC-2023-0052] in the proxy by updating
  its dependency on the `rustls` library
* Added a `prometheusUrl` field for the heartbeat job in the control plane Helm
  chart (thanks @david972!) ([#11343]; fixes [#11342])
* Introduced support for arbitrary labels in the `podMonitors` field in the
  control plane Helm chart (thanks @jseiser!) ([#11222]; fixes [#11175])
* Added support for config merge and Deployment environment to
  `opentelemetry-collector` in the jaeger extension (thanks @iAnomaly!)
  ([#11283])

[#11283]: #11283
[#11222]: #11222
[#11175]: #11175
[#11343]: #11343
[#11342]: #11342

Signed-off-by: Matei David <[email protected]>