fix(firestore-translate-text): remove deprecated gemini-2.0-flash model options (#2724)

* fix(firestore-translate-text): remove deprecated gemini-2.0-flash model options

gemini-2.0-flash and gemini-2.0-flash-lite are being discontinued on
June 1st, 2026. Remove them from the GEMINI_MODEL dropdown options.
The default (gemini-2.5-flash) is unchanged.

Fixes #2607

* chore(firestore-translate-text): bump version to 0.1.28

* Delete .agents/skills/public-skill/SKILL.md

Author: cabljac

firestore-translate-text/CHANGELOG.md

@@ -1,3 +1,7 @@
+## Version 0.1.28
+
+fix - remove deprecated gemini-2.0-flash and gemini-2.0-flash-lite model options
+
 ## Version 0.1.27
 
 chore: update Cloud Functions runtime to Node.js 22

firestore-translate-text/extension.yaml

@@ -13,7 +13,7 @@
 # limitations under the License.
 
 name: firestore-translate-text
-version: 0.1.27
+version: 0.1.28
 specVersion: v1beta
 
 tags: [ai]
@@ -172,10 +172,6 @@ params:
       - label:
           Gemini 2.5 Flash Lite (cheap, good quality, large max output size)
         value: gemini-2.5-flash-lite
-      - label: Gemini 2.0 Flash (cheap, good quality)
-        value: gemini-2.0-flash
-      - label: Gemini 2.0 Flash Lite (cheapest, lowest quality)
-        value: gemini-2.0-flash-lite
     default: gemini-2.5-flash
 
   - param: GOOGLE_AI_API_KEY