[#1817] Actions: update list of job runners environments for CI (#1811)

The virtual environments for the GitHub Actions runners have been
updated, with the introduction of macos-12 and ubuntu-22.04, and the
deprecation of macos-10.15.

Let's update the list of environments used for running the CI jobs.

.github/workflows/integration.yml

@@ -15,7 +15,7 @@ jobs:
     name: ${{ matrix.os }} JDK 8
     strategy:
       matrix:
-        os: [ubuntu-18.04, ubuntu-20.04]
+        os: [ubuntu-18.04, ubuntu-20.04, ubuntu-22.04]
     runs-on: ${{ matrix.os }}
     env:
       NODE_VERSION: "lts/*"
@@ -106,7 +106,7 @@ jobs:
     name: ${{ matrix.os }} JDK 8
     strategy:
       matrix:
-        os: [macos-10.15, macos-11]
+        os: [macos-11, macos-12]
     runs-on: ${{ matrix.os }}
     env:
       HOMEBREW_NO_AUTO_UPDATE: 1 # Prevent time-consuming brew update
@@ -173,7 +173,7 @@ jobs:
     name: ${{ matrix.os }} JDK 8
     strategy:
       matrix:
-        os: [windows-2022, windows-2019]
+        os: [windows-2019, windows-2022]
     runs-on: ${{ matrix.os }}
     steps:
     - name: Checkout repository
@@ -229,7 +229,7 @@ jobs:
 
   cypress:
     name: Cypress frontend tests
-    runs-on: ubuntu-18.04
+    runs-on: ubuntu-20.04
 
     steps:
     - name: Checkout repository