Syncing src/ sub-repos for gfdl-to-main-2024-05-16

- Sub-repos src/icebergs, src/SIS2, and src/MOM6 were updated to dev/gfdl without
  any changes to doc strings or results.
- In preparation for PR to MOM6/main.

src/MOM6:
- NOAA_GFDL/MOM6@6272bbcdc Testing: Correct perf parsing of C++ output
- NOAA_GFDL/MOM6@e25388369 Merge branch 'main' into dev/gfdl
- NOAA_GFDL/MOM6@0c790f2dc SAL: Explicitly allocate sht variable in SAL_CS
- NOAA_GFDL/MOM6@129e1bda0 Merge pull request #1623 from jiandewang/DEV-EMC-candidate-20240425
- NOAA_GFDL/MOM6@a89d085bf Merge pull request #12 from marshallward/db_type_fix
- NOAA_GFDL/MOM6@aac5bb846 Replace db array default values with real literals
- NOAA_GFDL/MOM6@0730606b8 Merge pull request #132 from jiandewang/feature/update-to-main-20240401
- NOAA_GFDL/MOM6@6d0150d6c Merge remote-tracking branch 'MAIN/main' into feature/update-to-main-20240401
- NOAA_GFDL/MOM6@ab7bd14d2 Merge pull request #130 from marshallward/emc_fix_warn
- NOAA_GFDL/MOM6@dc248836f Error cleanup (Intel Fortran)
- NOAA_GFDL/MOM6@10521a921 Merge pull request #127 from jiandewang/feature/update-to-main-20240228

src/SIS2:
- NOAA-GFDL/SIS2@00c3b5b Fix to READ_HLIM_VALS
- NOAA-GFDL/SIS2@2007324 Fix to READ_HLIM_VALS
- NOAA-GFDL/SIS2@022bd89 Fix for specified ice layout non repro issue

src/icebergs:
- NOAA_GFDL/icebergs@729b231 Merge pull request #69 from alex-huth/iOM4_with_bergs
- NOAA_GFDL/icebergs@4abac9e fixed heat budget
- NOAA_GFDL/icebergs@e8f794b Merge pull request #68 from alex-huth/iOM4_with_bergs
- NOAA_GFDL/icebergs@9d77ef1 Several miscellaneous updates
- NOAA_GFDL/icebergs@89cf3e6 Use masked-out SST to determine units of SST
- NOAA_GFDL/icebergs@9c8266d fixed noted units of calving