Load minimum Go version from go.mod

Use workaround until actions/setup-go#450 is merged.

Author: Jacalz

.github/workflows/mobile_tests.yml

@@ -9,7 +9,8 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        go-version: ['1.19.x', 'stable']
+        go-version: ['', 'stable']
+        go-version-file: 'go.mod'
         include:
           - os: ubuntu-latest
             runner: xvfb-run

.github/workflows/platform_tests.yml

@@ -9,7 +9,8 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        go-version: ['1.19.x', 'stable']
+        go-version: ['', 'stable']
+        go-version-file: 'go.mod'
         os: [ubuntu-latest, macos-latest]
         include:
           - os: ubuntu-latest

.github/workflows/web_tests.yml

@@ -15,7 +15,7 @@ jobs:
         persist-credentials: false
     - uses: actions/setup-go@v5
       with:
-        go-version: '1.19.x'
+        go-version-file: 'go.mod'
 
     - name: Get dependencies
       run: sudo apt-get update && sudo apt-get install gcc libgl1-mesa-dev libegl1-mesa-dev libgles2-mesa-dev libx11-dev xorg-dev