Update GKE and Cloud Run notebooks for Memory in Agents (#2425)

Author: vladkol

.github/actions/spelling/line_forbidden.patterns

@@ -286,9 +286,6 @@
 # Should be TPU or TPUs
 \btpus?\b
 
-# Should be GKE
-\sgke\s
-
 # Should be GCS
 \sgcs\s
 

agents/cloud_run/agents_with_memory/get_started_with_memory_for_adk_in_cloud_run.ipynb

@@ -290,7 +290,9 @@
         "* PreloadMemory: Always retrieve memory at the beginning of each turn (similar to a callback).\n",
         "* LoadMemory: Retrieve memory when your agent decides it would be helpful.\n",
         "\n",
-        "By default, ADK uses [`InMemoryMemoryService`](https://github.com/google/adk-python/blob/main/src/google/adk/memory/in_memory_memory_service.py).\n",
+        "By default, ADK doesn't use any long-term memory service.\n",
+        "For prototyping and simple testing scenarios where persistence isn't required, you can leverage\n",
+        "[`InMemoryMemoryService`](https://github.com/google/adk-python/blob/main/src/google/adk/memory/in_memory_memory_service.py).\n",
         "It persists **all** information in-memory, and just like `InMemorySessionService`, if ADK's runner is shut down, all session data is lost.\n",
         "With in-memory sessions, the events are not condensed, and information is not extracted from them.\n",
         "\n",

agents/gke/agents_with_memory/get_started_with_memory_for_adk_in_gke.ipynb

@@ -292,7 +292,9 @@
         "* PreloadMemory: Always retrieve memory at the beginning of each turn (similar to a callback).\n",
         "* LoadMemory: Retrieve memory when your agent decides it would be helpful.\n",
         "\n",
-        "By default, ADK uses [`InMemoryMemoryService`](https://github.com/google/adk-python/blob/main/src/google/adk/memory/in_memory_memory_service.py).\n",
+        "By default, ADK doesn't use any long-term memory service.\n",
+        "For prototyping and simple testing scenarios where persistence isn't required, you can leverage\n",
+        "[`InMemoryMemoryService`](https://github.com/google/adk-python/blob/main/src/google/adk/memory/in_memory_memory_service.py).\n",
         "It persists **all** information in-memory, and just like `InMemorySessionService`, if ADK's runner is shut down, all session data is lost.\n",
         "With in-memory sessions, the events are not condensed, and information is not extracted from them.\n",
         "\n",