chore(pyright): drop newly-clean files from ignore list

Three files no longer have pyright errors after the is_given /
assert_given sweep — remove them from the ignore list (which serves as
a live todo of files with remaining type errors).

- src/pipecat/processors/gstreamer/pipeline_source.py
- src/pipecat/services/camb/tts.py
- src/pipecat/services/speechmatics/tts.py

pyrightconfig.json

@@ -30,7 +30,6 @@
     "src/pipecat/processors/frameworks/rtvi/observer.py",
     "src/pipecat/processors/frameworks/rtvi/processor.py",
     "src/pipecat/processors/frameworks/strands_agents.py",
-    "src/pipecat/processors/gstreamer/pipeline_source.py",
     "src/pipecat/services/anthropic/llm.py",
     "src/pipecat/services/assemblyai/stt.py",
     "src/pipecat/services/asyncai/tts.py",
@@ -43,7 +42,6 @@
     "src/pipecat/services/aws/utils.py",
     "src/pipecat/services/azure/stt.py",
     "src/pipecat/services/azure/tts.py",
-    "src/pipecat/services/camb/tts.py",
     "src/pipecat/services/cartesia/stt.py",
     "src/pipecat/services/cartesia/tts.py",
     "src/pipecat/services/deepgram/flux/base.py",
@@ -100,7 +98,6 @@
     "src/pipecat/services/smallest/tts.py",
     "src/pipecat/services/soniox/stt.py",
     "src/pipecat/services/speechmatics/stt.py",
-    "src/pipecat/services/speechmatics/tts.py",
     "src/pipecat/services/stt_service.py",
     "src/pipecat/services/tavus/video.py",
     "src/pipecat/services/tts_service.py",