Bump jackson.version from 2.14.2 to 2.15.0 (closes #136)

Bumps `jackson.version` from 2.14.2 to 2.15.0.

Updates `jackson-core` from 2.14.2 to 2.15.0
- [Release notes](https://github.com/FasterXML/jackson-core/releases)
- [Changelog](https://github.com/FasterXML/jackson-core/blob/jackson-core-2.15.0/release.properties)
- [Commits](https://github.com/FasterXML/jackson-core/compare/jackson-core-2.14.2...jackson-core-2.15.0)

Updates `jackson-annotations` from 2.14.2 to 2.15.0
- [Release notes](https://github.com/FasterXML/jackson/releases)
- [Commits](https://github.com/FasterXML/jackson/commits)

Updates `jackson-databind` from 2.14.2 to 2.15.0
- [Release notes](https://github.com/FasterXML/jackson/releases)
- [Commits](https://github.com/FasterXML/jackson/commits)

---
updated-dependencies:
- dependency-name: com.fasterxml.jackson.core:jackson-core
  dependency-type: direct:production
  update-type: version-update:semver-minor
- dependency-name: com.fasterxml.jackson.core:jackson-annotations
  dependency-type: direct:production
  update-type: version-update:semver-minor
- dependency-name: com.fasterxml.jackson.core:jackson-databind
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Change-Id: If76ee5b2c19f57f8c68d462cbebe5b110cf63dfa
Reviewed-on: https://korap.ids-mannheim.de/gerrit/c/KorAP/Koral/+/6966
Reviewed-by: Nils Diewald <nils@diewald-online.de>
diff --git a/pom.xml b/pom.xml
index ee0ef5e..5ab71fd 100644
--- a/pom.xml
+++ b/pom.xml
@@ -36,7 +36,7 @@
 
 	<properties>
 		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>		
-		<jackson.version>2.14.2</jackson.version>
+		<jackson.version>2.15.0</jackson.version>
 		<antlr4.version>4.9.3</antlr4.version>
 		<antlr3.version>3.5.3</antlr3.version>
 		<java.version>11</java.version>