Model variable naming sprint: part 2

[ss421]

Description

As part of variable name code sprint, this PR renames variables from group 2:

specific_humidity -> water_vapor_mixing_ratio_wrt_moist_air_and_condensed_water
specific_humidity_at_two_meters_above_surface -> water_vapor_mixing_ratio_wrt_moist_air_and_condensed_water_at_2m

Dependencies

build-group=https://github.com/JCSDA-internal/vader/pull/278
build-group=https://github.com/JCSDA-internal/saber/pull/956
build-group=https://github.com/JCSDA-internal/ufo/pull/3489
build-group=JCSDA-internal/ufo-data#455
build-group=https://github.com/JCSDA-internal/ops-um-jedi/pull/238
build-group=https://github.com/JCSDA-internal/lfric-jedi/pull/915
build-group=https://github.com/MetOffice/jjtests/pull/53
build-group=https://github.com/JCSDA-internal/oops/pull/2767

Impact

No impacts expected beyond the list in dependencies above

Checklist

• I have performed a self-review of my own code
• I have made corresponding changes to the documentation
• I have run the unit tests before creating the PR

[ss421]

Note: tested via the bundle and some test fail due to missing UFO branch. I don't expect any impact from that just working tests... Please review on the understanding that the test will pass. Thankyou.

[matthewrmshin]

Tested in my environment. Works as expected.

[mikecooke77]

Given the change from water_vapor_mixing_ratio_wrt_moist_air_and_condensed_water to water_vapor_mixing_ratio_wrt_moist_air, I have created a new branch:

feature/variable_names_part2_mcc

I didn't want to just replace the branch. @ss421 I'll leave you to do that if you are happy.

All tests passing (except known ufo aircraft varbc with debug):
http://fcm1/cylc-review/cycles/mcooke?&suite=mobundle-batch2

Note: As well as mo repos there is also an update to vader.