chore/CI: remove non-LTS java version 20

Author: oldratlee

.github/workflows/ci.yaml

@@ -11,7 +11,7 @@ jobs:
     strategy:
       matrix:
         os: [ ubuntu-latest, windows-latest ]
-        java: [ 8.0.345, 8, 11, 17, 20, 21, 22 ]
+        java: [ 8.0.345, 8, 11, 17, 21, 22 ]
       fail-fast: false
       max-parallel: 64
     name: Fast CI on Java ${{ matrix.java }} OS ${{ matrix.os }}

.github/workflows/strong_ci.yaml

@@ -26,7 +26,6 @@ jobs:
             8.0.345
             11
             17
-            20
             21
             22
           distribution: zulu

scripts/integration_test

@@ -54,7 +54,6 @@ readonly CI_JDKS=(
   8
   "$default_build_jdk_version"
   17
-  20
   21
   22
 )