Fix sequence name for processed_model_run_urls table

[dgboss]

Sequences are typically named as {table_name}_{field}_seq.
A sequence is manually defined in the processed_model_run table definition as follows:

Sequence("processed_model_run_url_id_seq") which is missing a 's' after 'url'. This only causes issues for new deployments but is easily fixed with an addition to the initial alembic migration.

Test Links:

Landing Page
MoreCast
Percentile Calculator
C-Haines
FireCalc
FireCalc bookmark
Auto Spatial Advisory (ASA)
HFI Calculator
SFMS Insights
Fire Watch

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
8 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 75.33%. Comparing base (9b04ff5) to head (b5feb1e).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #5005   +/-   ##
=======================================
  Coverage   75.33%   75.33%           
=======================================
  Files         599      599           
  Lines       28550    28550           
  Branches     2132     2132           
=======================================
  Hits        21509    21509           
  Misses       6411     6411           
  Partials      630      630           

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