Bump typescript from 5.7.3 to 5.8.2 (#120)

* Bump typescript from 5.7.3 to 5.8.2

Bumps [typescript](https://github.com/microsoft/TypeScript) from 5.7.3 to 5.8.2.
- [Release notes](https://github.com/microsoft/TypeScript/releases)
- [Changelog](https://github.com/microsoft/TypeScript/blob/main/azure-pipelines.release.yml)
- [Commits](microsoft/TypeScript@v5.7.3...v5.8.2)

---
updated-dependencies:
- dependency-name: typescript
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

* Fix errors related to latest typescript

---------

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Ryan Lubke <[email protected]>

Author: dependabot[bot]

package-lock.json

@@ -25,7 +25,7 @@
     "nyc": "^15.1",
     "source-map-support": "^0.5",
     "ts-node": "^10.9",
-    "typescript": "^5.7"
+    "typescript": "^5.8"
   },
   "scripts": {
     "grpc": "bin/npm-post-install.sh",

package.json

@@ -1488,7 +1488,7 @@ export class NamedCacheClient<K = any, V = any>
    *
    * @return the deserialized value
    */
-  protected toValue<V> (value: Uint8Array): V {
+  protected toValue<V> (value: Uint8Array): V | null {
     return (value && value.length > 0)
       ? this.getRequestFactory().serializer.deserialize(value)
       : null