Unify skills modules: move context/skills to sdk/skills #10930

Job	Run time
Check OpenAPI Schema	38s
build-binary-and-test (ubuntu-latest)	3m 0s
build-binary-and-test (macos-latest)	3m 40s
Build & Push (python-amd64)	8m 20s
Build & Push (golang-arm64)	6m 48s
Build & Push (python-arm64)	7m 41s
Build & Push (java-arm64)	9m 9s
Build & Push (java-amd64)	7m 40s
Build & Push (golang-amd64)	10m 25s
Merge Multi-Arch Manifests (python)	16s
Merge Multi-Arch Manifests (golang)	16s
Merge Multi-Arch Manifests (java)	13s
Consolidate Build Information	5s
Update PR description with agent server image	4s
	58m 15s

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