Update scala versions to 2.12.18 and 2.13.11

[RustedBones]

No description provided.

[RustedBones]

Tests are still failing with scala 2.13.11. See scala/bug#12683

[codecov]

Codecov Report

Merging #4864 (6beeb35) into main (81f8316) will increase coverage by 0.12%.
The diff coverage is 84.74%.

❗ Current head 6beeb35 differs from pull request most recent head 6b927cf. Consider uploading reports for the commit 6b927cf to get more accurate results

@@            Coverage Diff             @@
##             main    #4864      +/-   ##
==========================================
+ Coverage   62.71%   62.84%   +0.12%     
==========================================
  Files         281      282       +1     
  Lines       10539    10572      +33     
  Branches      775      788      +13     
==========================================
+ Hits         6610     6644      +34     
+ Misses       3929     3928       -1     

Impacted Files	Coverage Δ
...cala/com/spotify/scio/bigquery/BigQueryTypes.scala	68.00% <0.00%> (-1.39%)	⬇️
...io/bigquery/dynamic/syntax/SCollectionSyntax.scala	0.00% <ø> (ø)
...sdk/extensions/smb/ParquetTypeFileOperations.scala	96.55% <50.00%> (-3.45%)	⬇️
...otify/scio/bigquery/syntax/SCollectionSyntax.scala	72.72% <66.66%> (ø)
.../src/main/scala/com/spotify/scio/jdbc/JdbcIO.scala	76.81% <76.00%> (+5.14%)	⬆️
...ala/com/spotify/scio/testing/TransformFinder.scala	86.66% <86.66%> (ø)
...n/scala/com/spotify/scio/bigquery/BigQueryIO.scala	50.27% <87.27%> (+9.30%)	⬆️
...y/scio/values/PairSkewedSCollectionFunctions.scala	99.18% <100.00%> (+2.33%)	⬆️
...ain/scala/com/spotify/scio/extra/json/JsonIO.scala	100.00% <100.00%> (ø)
...in/scala/com/spotify/scio/extra/json/package.scala	80.00% <100.00%> (ø)

... and 4 files with indirect coverage changes

[RustedBones]

The regression should not be a blocker. We're not in control of user's scala version anyway. Those affected by the bug can downgrade.