Update ci.yml

Update latest STS from 19 to 20, add 22-ea

Author: cushon

.github/workflows/ci.yml

@@ -29,22 +29,22 @@ jobs:
       fail-fast: false
       matrix:
         os: [ ubuntu-latest ]
-        java: [ 19, 17, 11 ]
+        java: [ 20, 17, 11 ]
         experimental: [ false ]
         include:
           # Only test on macos and windows with a single recent JDK to avoid a
           # combinatorial explosion of test configurations.
           - os: macos-latest
-            java: 19
+            java: 20
             experimental: false
           - os: windows-latest
-            java: 19
+            java: 20
             experimental: false
           - os: ubuntu-latest
-            java: 20-ea
+            java: 21-ea
             experimental: true
           - os: ubuntu-latest
-            java: 21-ea
+            java: 22-ea
             experimental: true
     runs-on: ${{ matrix.os }}
     continue-on-error: ${{ matrix.experimental }}