Upgrade JDKs used by GitHub Actions builds

Summary of changes:
- Use JDK 11.0.20.1 instead of 11.0.19.
- Use JDK 17.0.8.1 instead of 17.0.7.
- Use JDK 20.0.2 instead of 20.0.1.
- Re-introduce the early access build, as Error Prone is now compatible
  with JDK 21-ea.

See:
- https://www.oracle.com/java/technologies/javase/11-0-20-relnotes.html
- https://www.oracle.com/java/technologies/javase/17-0-8-relnotes.html
- https://www.oracle.com/java/technologies/javase/20-0-2-relnotes.html

.github/ISSUE_TEMPLATE/bug_report.md

@@ -42,7 +42,7 @@ Please replace this sentence with log output, if applicable.
 <!-- Please complete the following information: -->
 
 - Operating system (e.g. MacOS Monterey).
-- Java version (i.e. `java --version`, e.g. `17.0.7`).
+- Java version (i.e. `java --version`, e.g. `17.0.8.1`).
 - Error Prone version (e.g. `2.18.0`).
 - Error Prone Support version (e.g. `0.9.0`).
 

.github/workflows/build.yaml

@@ -10,18 +10,22 @@ jobs:
     strategy:
       matrix:
         os: [ ubuntu-22.04 ]
-        jdk: [ 11.0.19, 17.0.7, 20.0.1 ]
+        jdk: [ 11.0.20.1, 17.0.8.1, 20.0.2 ]
         distribution: [ temurin ]
         experimental: [ false ]
         include:
           - os: macos-12
-            jdk: 17.0.7
+            jdk: 17.0.8.1
             distribution: temurin
             experimental: false
           - os: windows-2022
-            jdk: 17.0.7
+            jdk: 17.0.8.1
             distribution: temurin
             experimental: false
+          - os: ubuntu-22.04
+            jdk: 21-ea
+            distribution: zulu
+            experimental: true
     runs-on: ${{ matrix.os }}
     continue-on-error: ${{ matrix.experimental }}
     steps:

.github/workflows/codeql.yml

@@ -28,7 +28,7 @@ jobs:
       - name: Set up JDK
         uses: actions/setup-java@cd89f46ac9d01407894225f350157564c9c7cee2 # v3.12.0
         with:
-          java-version: 17.0.7
+          java-version: 17.0.8.1
           distribution: temurin
           cache: maven
       - name: Initialize CodeQL

.github/workflows/pitest-analyze-pr.yml

@@ -19,7 +19,7 @@ jobs:
       - name: Set up JDK
         uses: actions/setup-java@cd89f46ac9d01407894225f350157564c9c7cee2 # v3.12.0
         with:
-          java-version: 17.0.7
+          java-version: 17.0.8.1
           distribution: temurin
           cache: maven
       - name: Run Pitest

.github/workflows/pitest-update-pr.yml

@@ -26,7 +26,7 @@ jobs:
       - name: Set up JDK
         uses: actions/setup-java@cd89f46ac9d01407894225f350157564c9c7cee2 # v3.12.0
         with:
-          java-version: 17.0.7
+          java-version: 17.0.8.1
           distribution: temurin
           cache: maven
       - name: Download Pitest analysis artifact

.github/workflows/sonarcloud.yml

@@ -23,7 +23,7 @@ jobs:
       - name: Set up JDK
         uses: actions/setup-java@cd89f46ac9d01407894225f350157564c9c7cee2 # v3.12.0
         with:
-          java-version: 17.0.7
+          java-version: 17.0.8.1
           distribution: temurin
           cache: maven
       - name: Create missing `test` directory