Performance improvement on BufferedReader.seek (#1807)

* Enable some test_io tests

* Fix _io.cs formatting

* Seek in buffer

* Fix failing tests

* Fix for .NET 9

* Disable tests on .NET

* Uses non-deprecated action

* Try to add os to package name

* Fix bug and remove truncate

* Use IsolationLevel=PROCESS

* Skip shutdown tests

* Disable some tests on Linux

* Skip signals tests

* Update github actions

* Set test verbosity to normal

* Disable test on Mono

* Disable some tests

.github/workflows/main.yml

@@ -16,19 +16,19 @@ jobs:
     - name: Install tools
       if: matrix.os == 'ubuntu-latest'
       run: sudo apt-get -yq install mono-vbnc dos2unix
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v4
       with:
         submodules: true
     - name: Setup .NET Core 3.1
-      uses: actions/setup-dotnet@v1
+      uses: actions/setup-dotnet@v4
       with:
         dotnet-version: '3.1.x'
     - name: Setup .NET 6.0
-      uses: actions/setup-dotnet@v1
+      uses: actions/setup-dotnet@v4
       with:
         dotnet-version: '6.0.x'
     - name: Setup .NET 8.0
-      uses: actions/setup-dotnet@v1
+      uses: actions/setup-dotnet@v4
       with:
         dotnet-version: '8.0.x'
     - name: Version Information
@@ -41,9 +41,9 @@ jobs:
       run: pwsh make.ps1
     - name: Package
       run: pwsh make.ps1 package
-    - uses: actions/upload-artifact@v2
+    - uses: actions/upload-artifact@v4
       with:
-        name: packages
+        name: packages-${{ matrix.os }}
         path: Package/Release/Packages
     - name: Test (net462)
       run: ./make.ps1 -frameworks net462 test-all