Update gitleaks.yaml

Author: Edberg-Vasan

.github/workflows/gitleaks.yaml

@@ -28,11 +28,11 @@ jobs:
        if: steps.gitleaks.outcome != 'success'
        uses: actions/setup-dotnet@v3
        with:
-          dotnet-version: '3.1.x'
+          dotnet-version: '6.x'
      - name: Install the report tool packages
        if: steps.gitleaks.outcome != 'success'
        run: |
            nuget install "Syncfusion.Email" -source ${{ secrets.NexusFeedLink }} -ExcludeVersion
            dir $GITHUB_WORKSPACE/Syncfusion.Email/lib/netcoreapp3.1
            dotnet $GITHUB_WORKSPACE/Syncfusion.Email/lib/netcoreapp3.1/GitleaksReportMail.dll ${{ secrets.CITEAMCREDENTIALS }} "$GITHUB_REF_NAME" ${{ secrets.NETWORKCREDENTIALS }} ${{ secrets.NETWORKKEY }} "$GITHUB_WORKSPACE" ${{ secrets.ORGANIZATIONNAME }}
-           exit 1
+           exit 1