chore: release 0.6.1-SNAPSHOT (#58)

🤖 I have created a release \*beep\* \*boop\* --- ### Updating meta-information for bleeding-edge SNAPSHOT release. --- This PR was generated with [Release Please](https://github.com/googleapis/release-please).

Author: release-please[bot]

pom.xml

@@ -4,7 +4,7 @@
  <groupId>com.google.cloud</groupId>
  <artifactId>google-cloud-shared-dependencies</artifactId>
  <packaging>pom</packaging>
- <version>0.6.0</version><!-- {x-version-update:google-cloud-shared-dependencies:current} -->
+ <version>0.6.1-SNAPSHOT</version><!-- {x-version-update:google-cloud-shared-dependencies:current} -->
  <name>Google Cloud Shared Dependencies</name>
  <url>https://github.com/googleapis/java-shared-dependencies</url>
  <description>

versions.txt

@@ -1,4 +1,4 @@
 # Format:
 # module:released-version:current-version
 
-google-cloud-shared-dependencies:0.6.0:0.6.0
+google-cloud-shared-dependencies:0.6.0:0.6.1-SNAPSHOT