chore(gradle): bump pac4j from 5.7.9 to 6.4.2

Bumps `pac4j` from 5.7.9 to 6.4.2.

Updates `org.pac4j:pac4j-http` from 5.7.9 to 6.4.2
- [Commits](pac4j/pac4j@pac4j-parent-5.7.9...pac4j-parent-6.4.2)

Updates `org.pac4j:pac4j-oidc` from 5.7.9 to 6.4.2
- [Commits](pac4j/pac4j@pac4j-parent-5.7.9...pac4j-parent-6.4.2)

---
updated-dependencies:
- dependency-name: org.pac4j:pac4j-http
  dependency-version: 6.4.2
  dependency-type: direct:production
  update-type: version-update:semver-major
- dependency-name: org.pac4j:pac4j-oidc
  dependency-version: 6.4.2
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

gradle/libs.versions.toml

@@ -71,7 +71,7 @@ lz4 = "1.10.2"
 mindrot = "0.4"
 nidi = "0.18.1"
 oshi = "6.11.1"
-pac4j = "5.7.9"
+pac4j = "6.4.2"
 parquet = "1.16.0"
 picocli = "4.7.7"
 postgresql = "42.7.8"