Update GeoTools 31.5 and JTS 1.19.0

[jodygarnett]

The stable branch should stick to a supported version of GeoTools.

For main branch see #8613

Checklist

• I have read the contribution guidelines
• Pull request provided for main branch, backports managed with label
• Good housekeeping of code, cleaning up comments, tests, and documentation
• Clean commit history broken into understandable chucks, avoiding big commits with hundreds of files, cautious of reformatting and whitespace changes
• Clean commit messages, longer verbose messages are encouraged
• API Changes are identified in commit messages
• Testing provided for features or enhancements using automatic tests
• User documentation provided for new features or enhancements in manual
• Build documentation provided for development instructions in README.md files
• Library management using pom.xml dependency management. Update build documentation with intended library use and library tutorials or documentation

[juanluisrp]

@jodygarnett the dependency is not compatible with Java 8 that is what GN 4.2.x uses:

core-geonetwork/core/src/main/java/org/fao/geonet/util/XslUtil.java:[83,33] cannot access org.geotools.geojson.geom.GeometryJSON
  bad class file: /Users/juanl/.m2/repository/org/geotools/gt-geojson/31.5/gt-geojson-31.5.jar(org/geotools/geojson/geom/GeometryJSON.class)
    class file has wrong version 55.0, should be 52.0
    Please remove or make sure it appears in the correct subdirectory of the classpath.

gt-geojson-31.5.jar is compiled for Java 11. Last Geotools version compatible with Java 8 is 28.x so the most recent we can use is 28.5.