fix(.github/workflows): increase max session turns (#4669)

Increase maxSessionTurns to 100 when using `@gemini-cli`. At the moment
it is very easy to quickly hit the limit.

Author: julieqiu

.github/workflows/gemini-invoke.yml

@@ -41,7 +41,7 @@ jobs:
           settings: |-
             {
               "model": {
-                "maxSessionTurns": 25
+                "maxSessionTurns": 100
               },
               "mcpServers": {
                 "github": {

.github/workflows/gemini-plan-execute.yml

@@ -42,7 +42,7 @@ jobs:
           settings: |-
             {
               "model": {
-                "maxSessionTurns": 25
+                "maxSessionTurns": 100
               },
               "mcpServers": {
                 "github": {