Update OpenKeychain to 6.0.0 (60000)

metadata/org.sufficientlysecure.keychain.yml

@@ -833,6 +833,21 @@ Builds:
       - extern/bouncycastle/pg/src/test
       - OpenKeychain/src/test/resources/OpenPGP-Haskell/tests
 
+  - versionName: 6.0.0
+    versionCode: 60000
+    commit: f099b86950b2b7a9449775e297b3f34a245929e2
+    subdir: OpenKeychain
+    submodules: true
+    gradle:
+      - yes
+    prebuild: echo -e '\norg.gradle.jvmargs=-Xmx1g' >> ../gradle.properties
+    scandelete:
+      - extern/bouncycastle/libs
+      - extern/bouncycastle/test
+      - extern/bouncycastle/core/src/test
+      - extern/bouncycastle/pg/src/test
+      - OpenKeychain/src/test/resources/OpenPGP-Haskell/tests
+
 MaintainerNotes: |-
   Summary and Description are maintained by upstream using fastlane in
   the source repo:
@@ -840,5 +855,5 @@ MaintainerNotes: |-
 
 AutoUpdateMode: Version
 UpdateCheckMode: Tags ^v[0-9.]+$
-CurrentVersion: 5.8.2
-CurrentVersionCode: 58902
+CurrentVersion: 6.0.0
+CurrentVersionCode: 60000