Remove obsolete CI configuration.

See spring-projects/spring-data-build#2764

.github/README.template.adoc

@@ -1,4 +1,4 @@
-= Spring Data for Elasticsearch image:https://jenkins.spring.io/buildStatus/icon?job=spring-data-elasticsearch%2Fmain&subject=Build[link=https://jenkins.spring.io/view/SpringData/job/spring-data-elasticsearch/] https://gitter.im/spring-projects/spring-data[image:https://badges.gitter.im/spring-projects/spring-data.svg[Gitter]] image:https://img.shields.io/badge/Revved%20up%20by-Develocity-06A0CE?logo=Gradle&labelColor=02303A["Revved up by Develocity", link="https://ge.spring.io/scans?search.rootProjectNames=Spring Data Elasticsearch"]
+= Spring Data for Elasticsearch image:https://img.shields.io/badge/Revved%20up%20by-Develocity-06A0CE?logo=Gradle&labelColor=02303A["Revved up by Develocity", link="https://ge.spring.io/scans?search.rootProjectNames=Spring Data Elasticsearch"]
 
 The primary goal of the https://projects.spring.io/spring-data[Spring Data] project is to make it easier to build Spring-powered applications that use new data access technologies such as non-relational databases, map-reduce frameworks, and cloud based data services.
 

.github/workflows/ci.yml

@@ -1,6 +1,7 @@
 name: CI Build
 
 on:
+  workflow_dispatch:
   push:
     branches: [ main, 6.0.x, 5.5.x, 'issue/**' ]
 
@@ -10,17 +11,17 @@ jobs:
   build-java:
     strategy:
       matrix:
-        java-version: [ base, main ]
+        java-version: [ base, next ]
     name: Build project
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v6
       - name: Setup Java and Maven
-        uses: spring-projects/spring-data-release/actions/setup-maven@main
+        uses: spring-projects/spring-data-build/actions/setup-maven@3.5.x
         with:
           java-version: ${{ matrix.java-version }}
           develocity-access-key: '${{ secrets.DEVELOCITY_ACCESS_KEY }}'
       - name: Build
-        uses: spring-projects/spring-data-release/actions/maven-build@main
+        uses: spring-projects/spring-data-build/actions/maven-build@3.5.x
         env:
           TESTCONTAINERS_REUSE_ENABLE: true

.github/workflows/snapshots.yml

@@ -1,6 +1,7 @@
 name: Snapshots
 
 on:
+  workflow_dispatch:
   push:
     branches: [ main, 6.0.x, 5.5.x, 'issue/**' ]
 
@@ -14,11 +15,11 @@ jobs:
     steps:
       - uses: actions/checkout@v6
       - name: Setup Java and Maven
-        uses: spring-projects/spring-data-release/actions/setup-maven@main
+        uses: spring-projects/spring-data-build/actions/setup-maven@3.5.x
         with:
           develocity-access-key: '${{ secrets.DEVELOCITY_ACCESS_KEY }}'
       - name: Deploy to Artifactory
-        uses: spring-projects/spring-data-release/actions/maven-artifactory-deploy@main
+        uses: spring-projects/spring-data-build/actions/maven-artifactory-deploy@3.5.x
         env:
           TESTCONTAINERS_REUSE_ENABLE: true
         with: