Update Microsoft.Build.Tasks.Core to 17.14.8

---
updated-dependencies:
- dependency-name: Microsoft.Build.Tasks.Core
  dependency-version: 17.14.8
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

Directory.Packages.props

@@ -19,6 +19,6 @@
 
     <ItemGroup>
         <PackageVersion Include="Microsoft.Build.Tasks.Core"
-                        Version="17.13.26" />
+                        Version="17.14.8" />
     </ItemGroup>
 </Project>