chore(deps): update dependency com.google.cloud.samples:shared-config…

…uration to v1.0.16 (#46)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| [com.google.cloud.samples:shared-configuration](https://togithub.com/GoogleCloudPlatform/java-repo-tools) | patch | `1.0.15` -> `1.0.16` |

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### Release Notes

<details>
<summary>GoogleCloudPlatform/java-repo-tools</summary>

### [`v1.0.16`](https://togithub.com/GoogleCloudPlatform/java-repo-tools/releases/v1.0.16)

[Compare Source](https://togithub.com/GoogleCloudPlatform/java-repo-tools/compare/v1.0.15...v1.0.16)

Add a few SpotBugs exclusions:

-   `RCN_REDUNDANT_NULLCHECK_WOULD_HAVE_BEEN_A_NPE` - existing - codegen bug
-   `UPM_UNCALLED_PRIVATE_METHOD` - probably SpotBug issue
-   `NP_NULL_ON_SOME_PATH_FROM_RETURN_VALUE` - likely SpotBug issue
-   `CLI_CONSTANT_LIST_INDEX` - style issue particular to our samples
-   `OBL_UNSATISFIED_OBLIGATION` - issue for SQL clients

</details>

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servicedirectory/snippets/pom.xml

@@ -26,7 +26,7 @@
   <parent>
     <groupId>com.google.cloud.samples</groupId>
     <artifactId>shared-configuration</artifactId>
-    <version>1.0.15</version>
+    <version>1.0.16</version>
   </parent>
 
   <properties>