chore: regenerate README (#141)

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Synth log will be available here:
https://source.cloud.google.com/results/invocations/2ee748ae-eb9e-490a-a920-256eb990adfc/targets

README.md

@@ -20,7 +20,7 @@ If you are using Maven with [BOM][libraries-bom], add this to your pom.xml file
     <dependency>
       <groupId>com.google.cloud</groupId>
       <artifactId>libraries-bom</artifactId>
-      <version>5.1.0</version>
+      <version>5.2.0</version>
       <type>pom</type>
       <scope>import</scope>
     </dependency>
@@ -41,7 +41,7 @@ If you are using Maven without BOM, add this to your dependencies:
 <dependency>
   <groupId>com.google.cloud</groupId>
   <artifactId>google-cloud-containeranalysis</artifactId>
-  <version>0.119.2-beta</version>
+  <version>0.120.0-beta</version>
 </dependency>
 
 ```

synth.metadata

@@ -3,8 +3,8 @@
     {
       "git": {
         "name": ".",
-        "remote": "git@github.com:googleapis/java-containeranalysis.git",
-        "sha": "e1cb830688e4c1efd3f1be1cbae49cd8a5a326ee"
+        "remote": "https://github.com/googleapis/java-containeranalysis.git",
+        "sha": "14b7133626aca7fe4e066ca9edfe44815e670b12"
       }
     },
     {