Update AsciiCam to 1.2.4 (16)

Also switch UCM from RepoManifest to Tags.

metadata/com.dozingcatsoftware.asciicam.yml

@@ -8,6 +8,9 @@ IssueTracker: https://github.com/dozingcat/AsciiCam/issues
 
 AutoName: AsciiCam
 Description: |-
+    NOTE: AsciiCam is no longer under active development. Its successor is
+    Vector Camera, which has all of AsciiCam's features.
+
     AsciiCam generates images in real time from whatever your camera is pointing at,
     either in greyscale, in the primary colors or in full color. Instead of a normal
     image made of pixels, each area will have a coloured letter of the latin
@@ -79,7 +82,15 @@ Builds:
     buildjni:
       - yes
 
+  - versionName: 1.2.4
+    versionCode: 16
+    commit: v1.2.4-fdroid
+    subdir: app/
+    gradle:
+      - yes
+    ndk: r21
+
 AutoUpdateMode: None
-UpdateCheckMode: RepoManifest
+UpdateCheckMode: Tags
 CurrentVersion: 1.2.4
 CurrentVersionCode: 16