chore(ci): use only Temurin distribution

Author: metacosm

.github/workflows/master-snapshot-release.yml

@@ -16,7 +16,7 @@ jobs:
     strategy:
       matrix:
         java: [ 11, 17 ]
-        distribution: [temurin, adopt-openj9]
+        distribution: [ temurin ]
         kubernetes: [ 'v1.17.13','v1.18.20','v1.19.14','v1.20.10','v1.21.4', 'v1.22.1' ]
     steps:
       - uses: actions/checkout@v2

.github/workflows/pr.yml

@@ -16,7 +16,7 @@ jobs:
     strategy:
       matrix:
         java: [ 11, 17 ]
-        distribution: [ temurin, adopt-openj9 ]
+        distribution: [ temurin ]
         kubernetes: [ 'v1.17.13','v1.18.20','v1.19.14','v1.20.10','v1.21.4', 'v1.22.1' ]
     steps:
       - uses: actions/checkout@v2