OPSEXP-2949 Add JRE 21 (#207)

.github/workflows/main.yml

@@ -53,6 +53,11 @@ jobs:
               flavor: rockylinux
               major: 9
             java_major: 17
+          - tomcat_major: 10
+            base_image:
+              flavor: rockylinux
+              major: 9
+            java_major: 21
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2

README.md

@@ -17,12 +17,14 @@ Tomcat version | Java version | OS            | Image ref
 10             | 11           | Rocky Linux 8 | `alfresco/alfresco-base-tomcat:tomcat9-jre11-rockylinux8`  | ![tomcat10-jre11-rockylinux8 size][3]
 10             | 17           | Rocky Linux 8 | `alfresco/alfresco-base-tomcat:tomcat10-jre17-rockylinux8` | ![tomcat10-jre17-rockylinux8 size][4]
 10             | 17           | Rocky Linux 9 | `alfresco/alfresco-base-tomcat:tomcat10-jre17-rockylinux9` | ![tomcat10-jre17-rockylinux9 size][5]
+10             | 21           | Rocky Linux 9 | `alfresco/alfresco-base-tomcat:tomcat10-jre21-rockylinux9` | ![tomcat10-jre21-rockylinux9 size][6]
 
 [1]: https://img.shields.io/docker/image-size/alfresco/alfresco-base-tomcat/tomcat9-jre11-rockylinux8
 [2]: https://img.shields.io/docker/image-size/alfresco/alfresco-base-tomcat/tomcat9-jre17-rockylinux8
 [3]: https://img.shields.io/docker/image-size/alfresco/alfresco-base-tomcat/tomcat10-jre11-rockylinux8
 [4]: https://img.shields.io/docker/image-size/alfresco/alfresco-base-tomcat/tomcat10-jre17-rockylinux8
 [5]: https://img.shields.io/docker/image-size/alfresco/alfresco-base-tomcat/tomcat10-jre17-rockylinux9
+[6]: https://img.shields.io/docker/image-size/alfresco/alfresco-base-tomcat/tomcat10-jre21-rockylinux9
 
 The images are available on:
 
@@ -170,7 +172,7 @@ where:
 
 * DISTRIB_NAME is rockylinux
 * DISTRIB_MAJOR is 8 or 9 for rockylinux
-* JAVA_MAJOR is 11 or 17 for rockylinux only
+* JAVA_MAJOR is 11, 17 or 21 for rockylinux only
 * TOMCAT_MAJOR is 8 or 9
 
 ### Release