deps: update dependency com.google.http-client:google-http-client-bom…

… to v1.42.2 (#749)

first-party-dependencies/pom.xml

@@ -64,7 +64,7 @@
     <google.common-protos.version>2.9.2</google.common-protos.version>
     <google.core.version>2.8.1</google.core.version>
     <google.auth.version>1.8.1</google.auth.version>
-    <google.http-client.version>1.42.1</google.http-client.version>
+    <google.http-client.version>1.42.2</google.http-client.version>
     <google.oauth-client.version>1.34.1</google.oauth-client.version>
     <google.api-client.version>2.0.0</google.api-client.version>
     <iam.version>1.5.2</iam.version>