Using an explicit matrix, makes sure the required version of the module
can be tested.

Signed-off-by: Jeroen Simonetti <[email protected]>

Add a GitHub actions workflow to run golanci-lint.
* Only uses latest Go version to avoid `gofmt` differences.
* Fixup linting issues.
* Ignore misspell `Prefered` as it is used as a public struct variable.
* Disable `unused-parameter` as it produces unecessary warning noise.

Signed-off-by: SuperQ <[email protected]>

Signed-off-by: Jeroen Simonetti <[email protected]>

Bumps [actions/setup-go](https://github.com/actions/setup-go) from 3.5.0 to 4.1.0.
- [Release notes](https://github.com/actions/setup-go/releases)
- [Commits](actions/setup-go@6edd440...93397be)

---
updated-dependencies:
- dependency-name: actions/setup-go
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Bumps [golang.org/x/sys](https://github.com/golang/sys) from 0.14.1-0.20231108175955-e4099bfacb8c to 0.15.0.
- [Commits](https://github.com/golang/sys/commits/v0.15.0)

---
updated-dependencies:
- dependency-name: golang.org/x/sys
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Bumps [golang.org/x/sys](https://github.com/golang/sys) from 0.15.0 to 0.16.0.
- [Commits](golang/sys@v0.15.0...v0.16.0)

---
updated-dependencies:
- dependency-name: golang.org/x/sys
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Bumps [actions/setup-go](https://github.com/actions/setup-go) from 4.1.0 to 5.0.0.
- [Release notes](https://github.com/actions/setup-go/releases)
- [Commits](actions/setup-go@93397be...0c52d54)

---
updated-dependencies:
- dependency-name: actions/setup-go
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Jeroen Simonetti <[email protected]>

* Remove length check for NeighAttributes

The attribute length has more context then previously presumed.
Especially when using tunnels and other link types, the attributes
can use different lengths then expected.

This completely removes any length check for neighbor attributes.
This places the burden of checking for correctness to the consumer
of this library.