ci: use LLVM 20.1.0 for MSAN #31993

1. 
   fanquake commented at 10:52 am on March 5, 2025: member

   Now that the release is out, stop using rc1.
2. ci: use LLVM 20.1.0 for MSAN d76647eb8f
3. 
   DrahtBot commented at 10:52 am on March 5, 2025: 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/31993.

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   ACK	l0rinc, Sjors

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4. DrahtBot added the label Tests on Mar 5, 2025
5. 
   l0rinc commented at 11:06 am on March 5, 2025: contributor

   utACK d76647eb8f11708ae90600ce3b92570a86f62bac

   Cloned the repo locally to make sure the branch exists

6. 
   Sjors commented at 10:23 am on March 6, 2025: member

   ACK d76647eb8f11708ae90600ce3b92570a86f62bac

   Seems obviously useful and CI passes. Two hundred commits between rc1 and the final version is impressive: https://github.com/llvm/llvm-project/compare/llvmorg-20.1.0-rc1...llvmorg-20.1.0

7. fanquake merged this on Mar 6, 2025
8. fanquake closed this on Mar 6, 2025

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9. fanquake deleted the branch on Mar 6, 2025

Contributors
fanquake DrahtBot l0rinc Sjors

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