bump .NET to 8.0; remove LP_PARSER option

.github/workflows/amd64_linux_cmake_coinor_off.yml

@@ -29,10 +29,10 @@ jobs:
     - name: Check swig
       run: swig -version
       # Install .NET SDKs
-    - name: Setup .NET 6.0
+    - name: Setup .NET 8.0
       uses: actions/setup-dotnet@v4
       with:
-        dotnet-version: 6.0.x
+        dotnet-version: 8.0.x
     - name: Check dotnet
       run: dotnet --info
       # Install Java

.github/workflows/amd64_linux_cmake_dotnet.yml

@@ -18,10 +18,10 @@ jobs:
         run: |
           sudo apt install -y swig
           swig -version
-      - name: Setup .NET 6.0
+      - name: Setup .NET 8.0
         uses: actions/setup-dotnet@v4
         with:
-          dotnet-version: 6.0.x
+          dotnet-version: 8.0.x
       - name: Check dotnet
         run: dotnet --info
       - name: Check CMake

.github/workflows/amd64_linux_cmake_no_lp_parser.yml

@@ -1,44 +0,0 @@
-# ref: https://github.com/actions/runner-images
-name: amd64 Linux CMake C++ LP_PARSER OFF
-
-on: [push, pull_request, workflow_dispatch]
-
-concurrency:
-  group: ${{github.workflow}}-${{github.ref}}
-  cancel-in-progress: true
-
-# Building using the github runner environement directly.
-jobs:
-  native:
-    name: amd64•Linux•CMake•LP_PARSER=OFF
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v4
-      - name: Check cmake
-        run: cmake --version
-      - name: Configure
-        run: >
-          cmake -S. -Bbuild
-          -DCMAKE_BUILD_TYPE=Release
-          -DBUILD_DEPS=ON
-          -DBUILD_LP_PARSER=OFF
-      - name: Build
-        run: >
-          cmake --build build
-          --config Release
-          --target all
-          -v -j2
-      - name: Test
-        run: >
-          CTEST_OUTPUT_ON_FAILURE=1
-          cmake --build build
-          --config Release
-          --target test
-          -v
-      - name: Install
-        run: >
-          cmake --build build
-          --config Release
-          --target install
-          -v
-          -- DESTDIR=install

.github/workflows/amd64_linux_cmake_scip_off.yml

@@ -29,10 +29,10 @@ jobs:
     - name: Check swig
       run: swig -version
       # Install .NET SDKs
-    - name: Setup .NET 6.0
+    - name: Setup .NET 8.0
       uses: actions/setup-dotnet@v4
       with:
-        dotnet-version: 6.0.x
+        dotnet-version: 8.0.x
     - name: Check dotnet
       run: dotnet --info
       # Install Java

.github/workflows/amd64_macos_cmake_dotnet.yml

@@ -25,10 +25,10 @@ jobs:
         run: |
           brew install swig
           swig -version
-      - name: Setup .NET 6.0
+      - name: Setup .NET 8.0
         uses: actions/setup-dotnet@v4
         with:
-          dotnet-version: 6.0.x
+          dotnet-version: 8.0.x
       - name: Check dotnet
         run: dotnet --info
       - name: Check CMake

.github/workflows/amd64_windows_cmake_dotnet.yml

@@ -22,10 +22,10 @@ jobs:
       CTEST_OUTPUT_ON_FAILURE: 1
     steps:
       - uses: actions/checkout@v4
-      - name: Setup .NET 6.0
+      - name: Setup .NET 8.0
         uses: actions/setup-dotnet@v4
         with:
-          dotnet-version: 6.0.x
+          dotnet-version: 8.0.x
       - name: Check dotnet
         run: dotnet --info
       - name: Check CMake

.github/workflows/arm64_macos_cmake_dotnet.yml

@@ -25,10 +25,10 @@ jobs:
         run: |
           brew install swig
           swig -version
-      - name: Setup .NET 6.0
+      - name: Setup .NET 8.0
         uses: actions/setup-dotnet@v4
         with:
-          dotnet-version: 6.0.x
+          dotnet-version: 8.0.x
       - name: Check dotnet
         run: dotnet --info
       - name: Check CMake