deps: update beam.version to v2.68.0

Author: renovate-bot

samples/install-without-bom/pom.xml

@@ -20,7 +20,7 @@
   <properties>
     <maven.compiler.target>1.8</maven.compiler.target>
     <maven.compiler.source>1.8</maven.compiler.source>
-    <beam.version>2.66.0</beam.version>
+    <beam.version>2.68.0</beam.version>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
   </properties>
 

samples/snapshot/pom.xml

@@ -21,7 +21,7 @@
     <maven.compiler.target>1.8</maven.compiler.target>
     <maven.compiler.source>1.8</maven.compiler.source>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-    <beam.version>2.66.0</beam.version>
+    <beam.version>2.68.0</beam.version>
   </properties>
 
   <!-- {x-version-update-start::current} -->

samples/snippets/pom.xml

@@ -21,7 +21,7 @@
     <maven.compiler.target>1.8</maven.compiler.target>
     <maven.compiler.source>1.8</maven.compiler.source>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-    <beam.version>2.66.0</beam.version>
+    <beam.version>2.68.0</beam.version>
     <!-- Define a default empty value property which can be overridden on the command line if
         necessary by passing `-Dfirestore.project.id="some-id"` when running maven exec -->
     <firestore.project.id/>