Remove concurrency limits for CI and System Tests

Closes gh-43900

Author: wilkinsona

.github/workflows/ci.yml

@@ -3,8 +3,6 @@ on:
   push:
     branches:
       - '3.3.x'
-concurrency:
-  group: ${{ github.workflow }}-${{ github.ref }}
 jobs:
   ci:
     name: '${{ matrix.os.name}} | Java ${{ matrix.java.version}}'

.github/workflows/run-system-tests.yml

@@ -3,8 +3,6 @@ on:
   push:
     branches:
       - '3.3.x'
-concurrency:
-  group: ${{ github.workflow }}-${{ github.ref }}
 jobs:
   run-system-tests:
     name: 'Java ${{ matrix.java.version}}'