Turn off dependabot updates to the 1.2 maintenance branch (#2544)

Author: acoburn

.github/dependabot.yml

@@ -21,81 +21,6 @@ updates:
     schedule:
       interval: "monthly"
 
-# 1.2 Maintenance
-  - package-ecosystem: "maven"
-    directory: "/"
-    schedule:
-      interval: "cron"
-      cronjob: "30 4 1,15 * *"
-    target-branch: "1.2"
-    ignore:
-      - dependency-name: "org.eclipse.rdf4j:rdf4j-*"
-      - dependency-name: "org.springframework.security:spring-*"
-      - dependency-name: "com.google.protobuf:protobuf-java"
-        update-types:
-          - "version-update:semver-major"
-      - dependency-name: "org.junit.jupiter:junit-*"
-        update-types:
-          - "version-update:semver-major"
-      - dependency-name: "org.junit:junit-*"
-        update-types:
-          - "version-update:semver-major"
-    labels:
-      - "backport"
-      - "1.2"
-    groups:
-      plugins:
-        patterns:
-          - "org.apache.maven.plugins:*"
-          - "com.mycila:license-maven-plugin"
-          - "org.jacoco:jacoco-maven-plugin"
-          - "org.sonarsource.scanner.maven:sonar-maven-plugin"
-          - "org.sonatype.plugins:nexus-staging-maven-plugin"
-          - "org.owasp:dependency-check-maven"
-
-  - package-ecosystem: "maven"
-    directory: "/rdf4j/"
-    schedule:
-      interval: "cron"
-      cronjob: "30 4 1,15 * *"
-    target-branch: "1.2"
-    allow:
-      - dependency-name: "org.eclipse.rdf4j:rdf4j-*"
-    labels:
-      - "backport"
-      - "1.2"
-
-  - package-ecosystem: "maven"
-    directory: "/spring/"
-    schedule:
-      interval: "cron"
-      cronjob: "30 4 1,15 * *"
-    target-branch: "1.2"
-    allow:
-      - dependency-name: "org.springframework.security:spring-*"
-    labels:
-      - "backport"
-      - "1.2"
-
-  - package-ecosystem: "gradle"
-    directory: "/gradle/"
-    schedule:
-      interval: "cron"
-      cronjob: "30 4 1,15 * *"
-    target-branch: "1.2"
-    labels:
-      - "backport"
-      - "1.2"
-
-  - package-ecosystem: "github-actions"
-    directory: "/"
-    schedule:
-      interval: "monthly"
-    target-branch: "1.2"
-    labels:
-      - "backport"
-      - "1.2"
-
 # 1.3 Maintenance
   - package-ecosystem: "maven"
     directory: "/"