CAMEL-23112 - minimal version is Java 21 now

- updated compiler
- updated Github job

Signed-off-by: Aurélien Pupier <apupier@ibm.com>

Author: apupier

.github/workflows/master-pr-build.yml

@@ -27,7 +27,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        java: [ '17' ]
+        java: [ '21' ]
     steps:
       - uses: actions/checkout@v2
       - name: Set up JDK ${{ matrix.java }}

.github/workflows/master-push-build.yml

@@ -27,7 +27,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        java: [ '17' ]
+        java: [ '21' ]
     steps:
       - uses: actions/checkout@v2
       - name: Set up JDK ${{ matrix.java }}

pom.xml

@@ -107,7 +107,7 @@
 
 	<properties>
 		<camel-version>4.19.0-SNAPSHOT</camel-version>
-    	<javaVersion>17</javaVersion>
+    	<javaVersion>21</javaVersion>
 		<skip.starting.camel.context>false</skip.starting.camel.context>
 		<jkube-maven-plugin-version>1.18.1</jkube-maven-plugin-version>
 		<jkube.generator.from>registry.access.redhat.com/ubi9/openjdk-17:latest</jkube.generator.from>