Bump com.google.firebase:firebase-crashlytics from 20.0.4 to 20.0.6 (#416)

Bumps [com.google.firebase:firebase-crashlytics](https://github.com/firebase/firebase-android-sdk) from 20.0.4 to 20.0.6.
- [Commits](https://github.com/firebase/firebase-android-sdk/commits)

---
updated-dependencies:
- dependency-name: com.google.firebase:firebase-crashlytics
  dependency-version: 20.0.6
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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Author: dependabot[bot]

app/build.gradle

@@ -38,7 +38,7 @@ dependencies {
     implementation 'com.jakewharton:butterknife:10.2.3'
     implementation 'com.github.medyo:fancybuttons:1.9.1'
     implementation 'com.google.android.material:material:1.14.0'
-    implementation 'com.google.firebase:firebase-crashlytics:20.0.4'
+    implementation 'com.google.firebase:firebase-crashlytics:20.0.6'
     implementation 'com.google.firebase:firebase-analytics:23.2.0'
     implementation 'com.obsez.android.lib.filechooser:filechooser:1.2.0'
     implementation 'gun0912.ted:tedpermission:2.2.3'