Bump mariadb-java-client from 2.7.5 to 2.7.6 (#8953)

Bumps [mariadb-java-client](https://github.com/mariadb-corporation/mariadb-connector-j) from 2.7.5 to 2.7.6.
- [Release notes](https://github.com/mariadb-corporation/mariadb-connector-j/releases)
- [Changelog](https://github.com/mariadb-corporation/mariadb-connector-j/blob/2.7.6/CHANGELOG.md)
- [Commits](mariadb-corporation/mariadb-connector-j@2.7.5...2.7.6)

---
updated-dependencies:
- dependency-name: org.mariadb.jdbc:mariadb-java-client
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

build.gradle

@@ -151,7 +151,7 @@ dependencies {
     implementation group: 'com.fasterxml.jackson.dataformat', name: 'jackson-dataformat-yaml', version: '2.13.3'
     implementation group: 'com.fasterxml.jackson.datatype', name: 'jackson-datatype-jsr310', version: '2.13.3'
 
-    implementation group: 'org.mariadb.jdbc', name: 'mariadb-java-client', version: '2.7.5'
+    implementation group: 'org.mariadb.jdbc', name: 'mariadb-java-client', version: '2.7.6'
 
     implementation 'org.postgresql:postgresql:42.4.0'