COMP: Update GitHub Actions pipelines standardize on building against Qt 5.15.2

Linux:
* Update runner from "ubuntu-18.04" to "ubuntu-20.04"

macOS:
* Hard-code runner to "macos-10.15"

Windows:
* Update runner from "windows-2016" to "windows-2022"
* Update Visual Studio from "15 2017" to "17 2022"
* Explicitly specify toolset v143

Author: jcfr

.github/workflows/linux.yml

@@ -8,7 +8,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        os: [ubuntu-18.04, ubuntu-latest]
+        os: [ubuntu-20.04]
 
     steps:
     - name: Checkout
@@ -20,7 +20,7 @@ jobs:
     - name: Install Qt
       uses: jurplel/install-qt-action@v3
       with:
-        version: 5.14.2
+        version: 5.15.2
         target: desktop
         host: linux
         install-deps: true

.github/workflows/mac.yml

@@ -5,7 +5,7 @@ on: [push, pull_request]
 jobs:
   mac-build-gui:
 
-    runs-on: macOS-latest
+    runs-on: macos-10.15
 
     steps:
     - name: Checkout
@@ -14,14 +14,14 @@ jobs:
     - name: Install Qt
       uses: jurplel/install-qt-action@v3
       with:
-        version: 5.14.2
+        version: 5.15.2
         target: desktop
         host: mac
         install-deps: true
 
-    - name: Prepare
-      run: |
-        ln -s /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.14.sdk/System/Library/Frameworks/Tk.framework/Versions/8.5/Headers/X11/ /usr/local/include/X11
+    #- name: Prepare
+    #  run: |
+    #    ln -s /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.14.sdk/System/Library/Frameworks/Tk.framework/Versions/8.5/Headers/X11/ /usr/local/include/X11
 
     - name: make
       run: ./build.sh -DQt5_PATH="${Qt5_Dir}"

.github/workflows/windows.yml

@@ -7,8 +7,8 @@ jobs:
   windows-build-gui:
     strategy:
       matrix:
-        qtversion: [5.12.8, 5.14.2]
-    runs-on: windows-2016
+        qtversion: [5.15.2]
+    runs-on: windows-2022
 
     steps:
 
@@ -27,7 +27,7 @@ jobs:
     - name: Configure
       working-directory: bin
       run: |
-        cmake ..\Superbuild -DCMAKE_BUILD_TYPE=Release -G"Visual Studio 15 2017" -Ax64 -DQt5_PATH:PATH="$env:Qt5_Dir" -DBUILD_WITH_PYTHON:BOOL=OFF
+        cmake ..\Superbuild -DCMAKE_BUILD_TYPE=Release -G"Visual Studio 17 2022" -Ax64 -Tv143 -DQt5_PATH:PATH="$env:Qt5_Dir" -DBUILD_WITH_PYTHON:BOOL=OFF
 
     - name: Compile
       working-directory: bin