Update scripts to use .Net 8 (#1020)

### Motivation and Context
The projects now use .Net 8 but the scripts still reference older
versions of the SDK

### Description
Upgrade .Net version in scripts

### Contribution Checklist
- [ ] The code builds clean without any errors or warnings
- [ ] The PR follows the [Contribution
Guidelines](https://github.com/microsoft/chat-copilot/blob/main/CONTRIBUTING.md)
and the [pre-submission formatting
script](https://github.com/microsoft/chat-copilot/blob/main/CONTRIBUTING.md#development-scripts)
raises no violations
- [ ] All unit tests pass, and I have added new tests where possible

scripts/Install.ps1

@@ -26,7 +26,7 @@ if (!$ChocoInstalled)
 }
 
 # Ensure required packages are installed
-$Packages = 'dotnet-7.0-sdk', 'nodejs', 'yarn'
+$Packages = 'dotnet-8.0-sdk', 'nodejs', 'yarn'
 foreach ($PackageName in $Packages)
 {
     choco install $PackageName -y

scripts/deploy/package-memorypipeline.ps1

@@ -10,7 +10,7 @@ param(
 
     [string]
     # .NET framework to publish.
-    $DotNetFramework = "net6.0",
+    $DotNetFramework = "net8.0",
 
     [string]
     # Target runtime to publish.

scripts/deploy/package-memorypipeline.sh

@@ -12,7 +12,7 @@ usage() {
     echo ""
     echo "Arguments:"
     echo "  -c, --configuration CONFIGURATION      Build configuration (default: Release)"
-    echo "  -d, --dotnet DOTNET_FRAMEWORK_VERSION  Target dotnet framework (default: net6.0)"
+    echo "  -d, --dotnet DOTNET_FRAMEWORK_VERSION  Target dotnet framework (default: net8.0)"
     echo "  -r, --runtime TARGET_RUNTIME           Runtime identifier (default: win-x64)"
     echo "  -o, --output OUTPUT_DIRECTORY          Output directory (default: $SCRIPT_ROOT)"
     echo "  -v  --version VERSION                  Version to set files to (default: 1.0.0)"
@@ -68,7 +68,7 @@ done
 
 # Set defaults
 : "${CONFIGURATION:="Release"}"
-: "${DOTNET:="net6.0"}"
+: "${DOTNET:="net8.0"}"
 : "${RUNTIME:="win-x64"}"
 : "${VERSION:="1.0.0"}"
 : "${INFO:=""}"

scripts/deploy/package-plugins.ps1

@@ -10,7 +10,7 @@ param(
 
     [string]
     # .NET framework to publish.
-    $DotNetFramework = "net6.0",
+    $DotNetFramework = "net8.0",
 
     [string]
     # Output directory for published assets.

scripts/deploy/package-plugins.sh

@@ -12,7 +12,7 @@ usage() {
     echo ""
     echo "Arguments:"
     echo "  -c, --configuration CONFIGURATION      Build configuration (default: Release)"
-    echo "  -d, --dotnet DOTNET_FRAMEWORK_VERSION  Target dotnet framework (default: net6.0)"
+    echo "  -d, --dotnet DOTNET_FRAMEWORK_VERSION  Target dotnet framework (default: net8.0)"
     echo "  -o, --output OUTPUT_DIRECTORY          Output directory (default: $SCRIPT_ROOT)"
     echo "  -v  --version VERSION                  Version to set files to (default: 1.0.0)"
     echo "  -i  --info INFO                        Additional info to put in version details"
@@ -62,7 +62,7 @@ done
 
 # Set defaults
 : "${CONFIGURATION:="Release"}"
-: "${DOTNET:="net6.0"}"
+: "${DOTNET:="net8.0"}"
 : "${VERSION:="1.0.0"}"
 : "${INFO:=""}"
 : "${OUTPUT_DIRECTORY:="$SCRIPT_ROOT"}"

scripts/deploy/package-webapi.ps1

@@ -10,7 +10,7 @@ param(
 
     [string]
     # .NET framework to publish.
-    $DotNetFramework = "net6.0",
+    $DotNetFramework = "net8.0",
 
     [string]
     # Target runtime to publish.

scripts/deploy/package-webapi.sh

@@ -12,7 +12,7 @@ usage() {
     echo ""
     echo "Arguments:"
     echo "  -c, --configuration CONFIGURATION      Build configuration (default: Release)"
-    echo "  -d, --dotnet DOTNET_FRAMEWORK_VERSION  Target dotnet framework (default: net6.0)"
+    echo "  -d, --dotnet DOTNET_FRAMEWORK_VERSION  Target dotnet framework (default: net8.0)"
     echo "  -r, --runtime TARGET_RUNTIME           Runtime identifier (default: win-x64)"
     echo "  -o, --output OUTPUT_DIRECTORY          Output directory (default: $SCRIPT_ROOT)"
     echo "  -v  --version VERSION                  Version to set files to (default: 1.0.0)"
@@ -75,7 +75,7 @@ echo  "Building backend executables..."
 
 # Set defaults
 : "${CONFIGURATION:="Release"}"
-: "${DOTNET:="net6.0"}"
+: "${DOTNET:="net8.0"}"
 : "${RUNTIME:="win-x64"}"
 : "${VERSION:="0.0.0"}"
 : "${INFO:=""}"