Adding missing Maven dependencies in tink-android POM file.

Derived with:
```
$ bazel query --output=build 'attr(tags, .*,filter(@maven, deps(//:tink-android-unshaded, 2)))' \
    | grep maven_coordinates | cut -d'"' -f2 | cut -d'=' -f2
...
androidx.annotation:annotation:1.3.0
com.google.code.findbugs:jsr305:3.0.2
com.google.code.gson:gson:2.10
com.google.errorprone:error_prone_annotations:2.16
com.google.protobuf:protobuf-javalite:3.19.6
```

NOTE: We purposely do not include `com.google.protobuf:protobuf-javalite:3.19.6` which is shaded.
PiperOrigin-RevId: 525120248
Change-Id: If3fbb8f71f92f58bc11123952c7b2a40ef435be1

examples/android/helloworld/gradle.properties

@@ -21,3 +21,4 @@ org.gradle.jvmargs=-Xmx1536m
 #   "snapshot": Maven Central snapshot repository (i.e. for testing published
 #       snapshots)
 mavenLocation=snapshot
+android.useAndroidX=true

maven/tink-java-android.pom.xml

@@ -86,14 +86,32 @@
   <properties>
     <java.version>1.8</java.version>
 
-    <gson.version>2.8.9</gson.version>
+    <findbugs.version>3.0.2</findbugs.version>
+    <androidx_annotation.version>1.3.0</androidx_annotation.version>
+    <error_prone_annotations.version>2.16</error_prone_annotations.version>
+    <gson.version>2.10</gson.version>
   </properties>
 
   <dependencies>
+    <dependency>
+      <groupId>androidx.annotation</groupId>
+      <artifactId>annotation</artifactId>
+      <version>${androidx_annotation.version}</version>
+    </dependency>
+    <dependency>
+      <groupId>com.google.code.findbugs</groupId>
+      <artifactId>jsr305</artifactId>
+      <version>${findbugs.version}</version>
+    </dependency>
     <dependency>
       <groupId>com.google.code.gson</groupId>
       <artifactId>gson</artifactId>
       <version>${gson.version}</version>
     </dependency>
+    <dependency>
+      <groupId>com.google.errorprone</groupId>
+      <artifactId>error_prone_annotations</artifactId>
+      <version>${error_prone_annotations.version}</version>
+    </dependency>
   </dependencies>
 </project>