Ensure local dotnet tools are restored on Linux and for CI

Windows users can do it manually if VS doesn't, at least until #3013

.github/workflows/ci.yml

@@ -43,7 +43,7 @@ jobs:
           dotnet-version: "8"
 
       - name: Test
-        run: dotnet test BizHawk.sln -c Release -p:ContinuousIntegrationBuild=true
+        run: dotnet tool restore && dotnet test BizHawk.sln -c Release -p:ContinuousIntegrationBuild=true
         shell: pwsh
 
   package:

Dist/.InvokeCLIOnMainSln.sh

@@ -12,4 +12,5 @@ if [ -z "$NUGET_PACKAGES" ]; then export NUGET_PACKAGES="$HOME/.nuget/packages";
 printf "running 'dotnet %s' in %s configuration, extra args: %s\n" "$cmd" "$config" "$*"
 version=$(grep -Po "MainVersion = \"\K(.*)(?=\")" src/BizHawk.Common/VersionInfo.cs)
 git_hash="$(git rev-parse --verify HEAD 2>/dev/null || printf "0000000000000000000000000000000000000000")"
+dotnet tool restore >/dev/null || (echo "dotnet tool restore failed"; exit 1)
 dotnet "$cmd" BizHawk.sln -c "$config" -m -clp:NoSummary -p:Version="$version" -p:SourceRevisionId="$git_hash" "$@"