CI: make the (legacy) build require CC >= 3.0

build for CC 3.0 instead of previously used CC 3.5

Although the Keplers are no longer supported by NVIDIA, it won't hurt
to still build for all Keplers (not only CC>=3.5) since the GPUJPEG
codebase allows that.  Also the compiler in ubuntu-20.04 and windows-2019
images support CUDA 10.x (last supporting CC 3.0), so it doesn't require
much of special attention.

Author: MartinPulec

.github/workflows/ccpp.yml

@@ -40,12 +40,14 @@ jobs:
     runs-on: ubuntu-20.04
     strategy:
       matrix:
-        cuda_arch: [35, all]
+        conf: [legacy, all]
         include:
-          - cuda_arch: 35
+          - conf: legacy
+            cuda_arch: 30
             tar_name: GPUJPEG-Linux.tar.xz
             name: Linux build
-          - cuda_arch: all
+          - conf: all
+            cuda_arch: all
             tar_name: GPUJPEG-Linux-all.tar.xz
             name: Linux build (all CUDA architetures)
 
@@ -56,7 +58,7 @@ jobs:
         sudo apt update
         sudo apt install cmake jq
     - name: Install disro CUDA
-      if: matrix.cuda_arch == 35
+      if: matrix.conf == 'legacy'
       run: |
         sudo apt install nvidia-cuda-toolkit
       id: install-distro-cuda
@@ -95,13 +97,13 @@ jobs:
   Windows:
     name: run Windows
     needs: retag-continuous
-    runs-on: windows-latest
+    runs-on: windows-2019
 
     steps:
     - uses: actions/checkout@main
     - name: install CUDA
       run: |
-        choco install cuda -y --no-progress --version=11.8.0.52206
+        choco install cuda -y --no-progress --version=10.1.243
         #$url="https://developer.download.nvidia.com/compute/cuda/12.1.0/network_installers/cuda_12.1.0_windows_network.exe"
         #$url -match 'cuda/(?<version>[0-9]+.[0-9]+)'
         #$version=$Matches.version
@@ -130,7 +132,7 @@ jobs:
         cmake.exe -DCMAKE_SYSTEM_VERSION=10.0.18362 -DCMAKE_BUILD_TYPE=Release `
           -DBUILD_OPENGL=ON -DGLFW_ROOT_DIR='C:\glfw' -DGLFW_USE_STATIC_LIBS=ON `
           -DGLEW_ROOT='C:\glew' -DGLEW_USE_STATIC_LIBS=ON `
-          -DCMAKE_CUDA_ARCHITECTURES=35 -Bbuild .
+          -DCMAKE_CUDA_ARCHITECTURES=30 -Bbuild .
         cmake.exe --build build --config Release --parallel (Get-CimInstance Win32_ComputerSystem).NumberOfLogicalProcessors
         cmake.exe --install build --prefix GPUJPEG
         cpack.exe --config build/CPackConfig.cmake -GNSIS64