Update OpenKeychain to 5.7.4 (57400)

metadata/org.sufficientlysecure.keychain.yml

@@ -786,6 +786,21 @@ Builds:
       - extern/bouncycastle/pg/src/test
       - OpenKeychain/src/test/resources/OpenPGP-Haskell/tests
 
+  - versionName: 5.7.4
+    versionCode: 57400
+    commit: v5.7.4
+    subdir: OpenKeychain
+    submodules: true
+    gradle:
+      - fdroid
+    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:
@@ -793,5 +808,5 @@ MaintainerNotes: |-
 
 AutoUpdateMode: Version v%v
 UpdateCheckMode: Tags ^v[0-9.]+$
-CurrentVersion: 5.7.3
-CurrentVersionCode: 57300
+CurrentVersion: 5.7.4
+CurrentVersionCode: 57400