[jdk11u-dev] RFR: 8306664: GHA: Update MSVC version to latest stepping [v2]

[Christoph Langer]

> This PR bumps the MSVC version for Windows x64 used in GHA to 14.29, just as in head and also for Windows/arm64.
> 
> The GHA tests probably won't be green until [JDK-8306543](https://bugs.openjdk.org/browse/JDK-8306543) gets backported, I'll refresh this PR after it has landed.
> Together with a backport of [JDK-8306658](https://bugs.openjdk.org/browse/JDK-8306658) we'll be able to reduce GHA runtimes on Windows significantly.

Christoph Langer has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains two additional commits since the last revision:

 - Merge branch 'master' into msvcstuff
 - JDK-8306664
   
   Update MSVC 2019 fox x86_64 to the latest stepping

-------------

Changes:
  - all: https://git.openjdk.org/jdk11u-dev/pull/1845/files
  - new: https://git.openjdk.org/jdk11u-dev/pull/1845/files/da4fe2e1..ec9af49b

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk11u-dev&pr=1845&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk11u-dev&pr=1845&range=00-01

  Stats: 917 lines in 24 files changed: 295 ins; 548 del; 74 mod
  Patch: https://git.openjdk.org/jdk11u-dev/pull/1845.diff
  Fetch: git fetch https://git.openjdk.org/jdk11u-dev.git pull/1845/head:pull/1845

PR: https://git.openjdk.org/jdk11u-dev/pull/1845