ci: Bump centos gcc to 12 #31477

1. 
   maflcko commented at 8:32 am on December 12, 2024: member

   Currently the centos stream9 CI task is using gcc-11. This is fine, because this is also the minimum supported.

   However:

   • There is already a CI task that is checking the minimum supported version: https://github.com/bitcoin/bitcoin/blob/62bd61de110b057cbfd6e31e4d0b727d93119c72/ci/test/00_setup_env_native_previous_releases.sh#L11-L12
   • The CI log is a bit useless, because it is mostly just #warning _FORTIFY_SOURCE > 2 is treated like 2 on this platform [-Werror=cpp]. This makes it harder to spot real warnings, such as #31476

   Fix both issues by using gcc-12.

2. 
   DrahtBot commented at 8:32 am on December 12, 2024: contributor

   The following sections might be updated with supplementary metadata relevant to reviewers and maintainers.

   Code Coverage & Benchmarks

   For details see: https://corecheck.dev/bitcoin/bitcoin/pulls/31477.

   Reviews

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   Type	Reviewers
   ACK	hebasto

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   Conflicts

   Reviewers, this pull request conflicts with the following ones:

   • #31349 (ci: detect outbound internet traffic generated while running tests by vasild)
   • #30997 (build: Switch to Qt 6 by hebasto)

   If you consider this pull request important, please also help to review the conflicting pull requests. Ideally, start with the one that should be merged first.

3. DrahtBot added the label Tests on Dec 12, 2024
4. ci: Bump centos gcc fa47baa03b
5. maflcko force-pushed on Dec 12, 2024
6. DrahtBot added the label CI failed on Dec 12, 2024
7. 
   DrahtBot commented at 8:53 am on December 12, 2024: contributor

   🚧 At least one of the CI tasks failed. Debug: https://github.com/bitcoin/bitcoin/runs/34303618224

   Try to run the tests locally, according to the documentation. However, a CI failure may still happen due to a number of reasons, for example:

   • Possibly due to a silent merge conflict (the changes in this pull request being incompatible with the current code in the target branch). If so, make sure to rebase on the latest commit of the target branch.

   • A sanitizer issue, which can only be found by compiling with the sanitizer and running the affected test.

   • An intermittent issue.

   Leave a comment here, if you need help tracking down a confusing failure.

8. DrahtBot removed the label CI failed on Dec 12, 2024
9. hebasto approved
10. 
    hebasto commented at 11:36 am on December 12, 2024: member

    ACK fa47baa03bcfcf44fb2ed05f009a32d32f860c45.
11. fanquake merged this on Dec 13, 2024
12. fanquake closed this on Dec 13, 2024

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13. maflcko deleted the branch on Dec 13, 2024

Contributors
maflcko DrahtBot hebasto

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Tests