Update Scala 2.12 to 2.12.17 && Drop quill-finagle-mysql and quill-finagle-postgres modules

[guizmaii]

We might have an issue:
If we want to update Scala 2.12 we can't continue to provide the quill-finagle-mysql and quill-finagle-postgres modules as finagle-mysql and finagle-postgres are still using dependencies that are binary incompatible with Scala 2.12.17.

finagle-postgres doesn't seem to be maintained anymore. Last release in 2021: https://github.com/finagle/finagle-postgres/releases
finagle-mysql seems to still be maintained a bit. Last release in December last year: https://mvnrepository.com/artifact/com.twitter/finagle-mysql

Issue with finagle-mysql and Scala 2.12.17:

[error] (quill-codegen-tests / Test / managedSources) java.lang.IllegalStateException: Failed to load data source for config: 'Config(SimpleConfigObject({"dataSource":{"url":"jdbc:h2:file:./codegen_test.h2;DB_CLOSE_ON_EXIT=TRUE","user":"sa"},"dataSourceClassName":"org.h2.jdbcx.JdbcDataSource"}))'
[error] (update) found version conflict(s) in library dependencies; some are suspected to be binary incompatible:
[error] 
[error]         * org.scala-lang.modules:scala-parser-combinators_2.12:2.1.1 (early-semver) is selected over {1.1.2}
[error]             +- org.apache.spark:spark-catalyst_2.12:3.4.0         (depends on 2.1.1)
[error]             +- com.twitter:util-core_2.12:22.12.0                 (depends on 1.1.2)

issue with `` and Scala 2.12.17:

[error] (quill-codegen-tests / Test / managedSources) java.lang.IllegalStateException: Failed to load data source for config: 'Config(SimpleConfigObject({"dataSource":{"url":"jdbc:h2:file:./codegen_test.h2;DB_CLOSE_ON_EXIT=TRUE","user":"sa"},"dataSourceClassName":"org.h2.jdbcx.JdbcDataSource"}))'
[error] (update) found version conflict(s) in library dependencies; some are suspected to be binary incompatible:
[error] 
[error]         * org.scala-lang.modules:scala-parser-combinators_2.12:2.1.1 (early-semver) is selected over 1.1.2
[error]             +- org.apache.spark:spark-catalyst_2.12:3.4.0         (depends on 2.1.1)
[error]             +- com.twitter:util-core_2.12:21.3.0                  (depends on 1.1.2)

To reproduce, uncomment these modules declaration on the build.sbt and run in sbt:

++ 2.12.x Test/compile

[guizmaii]

Akka uses 0.8.0 in its 2.12 version and 1.0.x in its 2.13 version.
These versions are not binary compatible

[deusaquilus]

Looks good!