Add amg2023 package

Consolidate existing amg and amg2013 packages (they reference the
same code) under the amg2013 name to minimize confusion between
amg2023 and amg2013.

Co-authored-by: Riyaz Haque <[email protected]>

Use the stable_versions variable to check stable versions

While spack does not yet provide binutils 2.41, they might still be
installed. However, building ffmpeg on x86_64 fails with multiple errors like
this:
./libavcodec/x86/mathops.h:125: Error: operand type mismatch for `shr'

also reported here: https://trac.ffmpeg.org/ticket/10405

Clone is a hard dependency as of HTTP-Message v6.44. This causes
problems in packages like Roary which depend on perl-http-message:

    $ spack load roary
    $ roary
    Use of uninitialized value in require at /var/scratch/spack/opt/spack/linux-centos8-x86_64_v3/gcc-8.5.0/perl-http-message-6.44-lzp5th4jddd3gojkjfli4hljgem2nl26/lib/perl5/HTTP/Headers.pm line 8.
    Can't locate Clone.pm in @inc (you may need to install the Clone module) (@inc contains:  /home/aorth/lib ...

See: https://github.com/libwww-perl/HTTP-Message/blob/master/Changes

* Add 2023.02 and 2023.01.01 with variant for mpp_io and fms_io deprecation

Co-authored-by: rem1776 <[email protected]>

…k#39603)

Bumps [sphinx](https://github.com/sphinx-doc/sphinx) from 7.2.2 to 7.2.3.
- [Release notes](https://github.com/sphinx-doc/sphinx/releases)
- [Changelog](https://github.com/sphinx-doc/sphinx/blob/master/CHANGES)
- [Commits](sphinx-doc/sphinx@v7.2.2...v7.2.3)

---
updated-dependencies:
- dependency-name: sphinx
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

spack#35042 introduced lazy hash parsing, but didn't remove a
few attributes from the parser that were needed only for
concrete specs

This commit removes them, since they are effectively
dead code.

* add magma variant to strumpack
* clarify conflicts to be excuive to rocm/cuda, without it +magma+cuda fails as it is ~rocm
   modified:   var/spack/repos/builtin/packages/strumpack/package.py
* add missing depends_on for magma variant