Convert ANALYSIS_COORDINATE_SYSTEM_SRID to int in map_filter

[SDScandrettKint]

Types of changes

• Bugfix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)

Description of Change

Simple fix to convert ANALYSIS_COORDINATE_SYSTEM_SRID to int.

Not sure if this fix is sufficient, or whether I should go with the approach of below, just in case the settings value for ANALYSIS_COORDINATE_SYSTEM_SRID is incorrect and can't be converted to an int (as this fix could cause another problem).

    try:
        analysis_coord_system_srid = int(settings.ANALYSIS_COORDINATE_SYSTEM_SRID)
    except Exception:
        analysis_coord_system_srid = 3857 # revert to default value

Issues Solved

Closes #11714

Checklist

• I targeted one of these branches:
  • dev/8.0.x (under development): features, bugfixes not covered below
  • dev/7.6.x (main support): regressions, crashing bugs, security issues, major bugs in new features
  • dev/6.2.x (extended support): major security issues, data loss issues
• I added a changelog in arches/releases
• I submitted a PR to arches-docs (if appropriate)
• Unit tests pass locally with my changes
• I added tests that prove my fix is effective or that my feature works
• My test fails on the target branch

Accessibility Checklist

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Ticket Background

• Sponsored by: Knowledge Integration
• Found by: @SDScandrettKint
• Tested by: @SDScandrettKint
• Designed by: @SDScandrettKint

Further comments