Bump slf4j.version from 2.0.9 to 2.0.12

Bumps `slf4j.version` from 2.0.9 to 2.0.12.

Updates `org.slf4j:slf4j-api` from 2.0.9 to 2.0.12

Updates `org.slf4j:jul-to-slf4j` from 2.0.9 to 2.0.12

Updates `org.slf4j:log4j-over-slf4j` from 2.0.9 to 2.0.12

Updates `org.slf4j:jcl-over-slf4j` from 2.0.9 to 2.0.12

---
updated-dependencies:
- dependency-name: org.slf4j:slf4j-api
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: org.slf4j:jul-to-slf4j
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: org.slf4j:log4j-over-slf4j
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: org.slf4j:jcl-over-slf4j
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

keycloak-dropwizard-ajax-example/pom.xml

@@ -10,7 +10,7 @@
     <artifactId>keycloak-dropwizard-ajax-example</artifactId>
 
     <properties>
-        <slf4j.version>2.0.9</slf4j.version>
+        <slf4j.version>2.0.12</slf4j.version>
         <logback.version>1.4.14</logback.version>
     </properties>