Add appropriate names to steps of code QL CI jobs

[thomasspriggs]

This PR adds appropriate names to steps of code QL CI jobs. When the name is not specified, the github UI uses the name of the first command as the step name. This was misleading as it resulted in a 48 minute step titled "Run sudo apt-get update" which was also doing the build commands.

• Each commit message has a non-empty body, explaining why the change was made.
• Methods or procedures I have added are documented, following the guidelines provided in CODING_STANDARD.md.
• The feature or user visible behaviour I have added or modified has been documented in the User Guide in doc/cprover-manual/
• Regression or unit tests are included, or existing tests cover the modified code (in this case I have detailed which ones those are in the commit message).
• My commit message includes data points confirming performance improvements (if claimed).
• My PR is restricted to a single feature or bugfix.
• White-space or formatting changes outside the feature-related changed lines are in commits of their own.

[codecov]

Codecov Report

All modified lines are covered by tests ✅

Comparison is base (3535b61) 79.11% compared to head (21ca56c) 79.03%.

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #7967      +/-   ##
===========================================
- Coverage    79.11%   79.03%   -0.08%     
===========================================
  Files         1701     1701              
  Lines       196271   196271              
===========================================
- Hits        155280   155123     -157     
- Misses       40991    41148     +157     

see 9 files with indirect coverage changes

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