[BUILD] Clang-15 warning about __has_trivial_destructor

[marcalff]

Fixes #2321

Changes

Please provide a brief description of the changes here.

• Upgrade gcc from 12 to 13 in CI maintainer mode builds
• Upgrade clang from 14 to 15 in CI maintainer mode builds
• Fixed a new warning [-Werror,-Wunused-but-set-variable] in spinlock_benchmark.cc
• Backported the following fixes from abseil-cpp, to resolve clang-15 warnings.

commit cfe27e79cfcbefb2b4479e04f80cbb299bc46965
Author: Abseil Team <[email protected]>
Date:   Fri Aug 5 06:56:05 2022 -0700

    Map the absl::is_trivially_* functions to their std impl
    
    There's no point redefining these functions if they are supported by the compiler and the version of libstdc++. Also, some of the builtins used by the absl implementation of these functions (e.g. __has_trivial_destructor) have been deprecated in Clang 15.
    
    PiperOrigin-RevId: 465554125
    Change-Id: I8674c3a5270ce3c654cdf58ae7dbd9d2bda8faa5

commit e61fc6d8da5154c6a665d7a28b9978f11b78eb62
Author: Keith Smiley <[email protected]>
Date:   Tue Oct 4 17:22:04 2022 +0000

    Fix more clang deprecated builtins
    
    If you compile with clang 15+, the uses of trivially destructible and
    assignable are deprecated. This sets this configuration correctly as the
    ifdef to fix the build.
    
    Fixes https://github.com/abseil/abseil-cpp/issues/1201
    Related https://github.com/abseil/abseil-cpp/pull/1277

Note that the fixes are not applied as is: ABSL_HAVE_STD_IS_XXX is also renamed to OTABSL_HAVE_STD_IS_XXX

For significant contributions please make sure you have completed the following items:

• CHANGELOG.md updated for non-trivial changes
• Unit tests have been added
• Changes in public API reviewed

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (fe15d0a) 87.09% compared to head (aec05e5) 87.09%.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #2502   +/-   ##
=======================================
  Coverage   87.09%   87.09%           
=======================================
  Files         200      200           
  Lines        6103     6103           
=======================================
  Hits         5315     5315           
  Misses        788      788           

[marcalff]

Note that upgrading from Clang 14 to Clang 15 in maintainer mode exposed the issue reported in #2321.