Migrate all scripts to use standard variables for Jira

[andrewnicols]

No description provided.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 31.38%. Comparing base (74df639) to head (3cff0f1).

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #343      +/-   ##
==========================================
- Coverage   33.01%   31.38%   -1.63%     
==========================================
  Files          71       72       +1     
  Lines        3229     3256      +27     
==========================================
- Hits         1066     1022      -44     
- Misses       2163     2234      +71     

Flag	Coverage Δ
check_upgrade_savepoints	0.46% <ø> (-0.01%)	⬇️
checkstyle_manipulations	0.00% <ø> (ø)
compare_databases	2.36% <ø> (-0.02%)	⬇️
continuous_manage_queues_validation	1.38% <ø> (+0.66%)	⬆️
define_excluded	1.10% <ø> (-0.01%)	⬇️
detect_conflicts	1.47% <ø> (-0.02%)	⬇️
diff_extract_changes	0.00% <ø> (ø)
git_sync_two_branches	?
grunt_process	2.97% <ø> (-0.03%)	⬇️
illegal_whitespace	2.61% <ø> (-0.03%)	⬇️
list_valid_components	0.00% <ø> (ø)
mustache_lint	2.82% <ø> (-0.03%)	⬇️
mustache_lint_plugins	1.32% <ø> (-0.02%)	⬇️
php_lint	1.22% <ø> (-0.02%)	⬇️
prepare_npm_stuff	1.50% <ø> (-0.02%)	⬇️
remote_branch_checker	17.29% <ø> (-0.15%)	⬇️
remote_branch_reporter	0.00% <ø> (ø)
setup	0.00% <ø> (ø)
thirdparty_check	1.47% <ø> (-0.02%)	⬇️
travis-branch-checker	0.00% <ø> (ø)
upgrade_external_backup	1.62% <ø> (-0.02%)	⬇️
verifications	0.00% <ø> (ø)
verify_commit_messages	2.61% <ø> (-0.03%)	⬇️
verify_phpunit_xml	1.22% <ø> (-0.02%)	⬇️
versions_check_set	4.97% <ø> (-0.05%)	⬇️

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[abgreeve]

All the files look correctly updated.
The custom fields and filters are conveniently in one place.
Thank you.