Update Ubuntu to 22.04, 20.04 is not longer supported

Author: aaime

.github/workflows/linux.yml

@@ -11,7 +11,7 @@ env:
 
 jobs:
   openjdk11:
-    runs-on: [ubuntu-20.04]
+    runs-on: [ubuntu-22.04]
     steps:
     - uses: actions/checkout@v4
     - name: Set up JDK 11
@@ -33,7 +33,7 @@ jobs:
         find .m2/repository -name "*SNAPSHOT*" -type d | xargs rm -rf {}
 
   openjdk17:
-    runs-on: [ubuntu-20.04]
+    runs-on: [ubuntu-22.04]
     steps:
     - uses: actions/checkout@v4
     - name: Set up JDK 17
@@ -55,7 +55,7 @@ jobs:
         find .m2/repository -name "*SNAPSHOT*" -type d | xargs rm -rf {}
 
   openjdk21:
-    runs-on: [ubuntu-20.04]
+    runs-on: [ubuntu-22.04]
     steps:
     - uses: actions/checkout@v4
     - name: Set up JDK 21
@@ -77,7 +77,7 @@ jobs:
         find .m2/repository -name "*SNAPSHOT*" -type d | xargs rm -rf {}
 
   QA:
-    runs-on: [ubuntu-20.04]
+    runs-on: [ubuntu-22.04]
     steps:
     - uses: actions/checkout@v4
     - name: Set up JDK 11