Merge pull request #9180 from nextcloud/dependabot/gradle/com.google.code.gson-gson-2.8.9

Bump gson from 2.8.8 to 2.8.9

build.gradle

@@ -286,7 +286,7 @@ dependencies {
     implementation 'com.googlecode.ez-vcard:ez-vcard:0.11.3'
     implementation 'org.lukhnos:nnio:0.2'
     implementation 'org.bouncycastle:bcpkix-jdk15to18:1.69'
-    implementation 'com.google.code.gson:gson:2.8.8'
+    implementation 'com.google.code.gson:gson:2.8.9'
     implementation 'com.afollestad:sectioned-recyclerview:0.5.0'
     implementation 'com.github.chrisbanes:PhotoView:2.3.0'
     implementation 'pl.droidsonroids.gif:android-gif-drawable:1.2.21'