[FLINK-37394] Update CI Flink versions to 1.19 and 1.20

Author: ferenc-csaky

.github/workflows/push_pr.yml

@@ -28,13 +28,8 @@ jobs:
   compile_and_test:
     strategy:
       matrix:
-        flink: [ 1.17.2 ]
-        jdk: [ '8, 11' ]
-        include:
-          - flink: 1.18.1
-            jdk: '8, 11, 17'
-          - flink: 1.19-SNAPSHOT
-            jdk: '8, 11, 17, 21'
+        flink: [ 1.19.2, 1.20.1 ]
+        jdk: [ '8, 11, 17, 21' ]
     uses: apache/flink-connector-shared-utils/.github/workflows/ci.yml@ci_utils
     with:
       flink_version: ${{ matrix.flink }}

.github/workflows/weekly.yml

@@ -30,10 +30,6 @@ jobs:
     strategy:
       matrix:
         flink_branches: [{
-          flink: 1.18-SNAPSHOT,
-          jdk: '8, 11, 17',
-          branch: main
-        }, {
           flink: 1.19-SNAPSHOT,
           jdk: '8, 11, 17, 21',
           branch: main

pom.xml

@@ -52,7 +52,7 @@ under the License.
 	</scm>
 
 	<properties>
-		<flink.version>1.17.2</flink.version>
+		<flink.version>1.19.2</flink.version>
 		<kudu.version>1.17.1</kudu.version>
 		<scala.binary.version>2.12</scala.binary.version>