fix: update copilot-instructions links to point to skills instead of eng/common (#46443)

Agent-Logs-Url: https://github.com/Azure/azure-sdk-for-python/sessions/31e09f2f-2d60-4854-addd-e2d11f01d5f8

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: l0lawrence <100643745+l0lawrence@users.noreply.github.com>

Author: Copilot

.github/copilot-instructions.md

@@ -113,7 +113,7 @@ This library is failing two release blocking checks - Mypy and Tests - CI. The l
 ## Local SDK Generation and Package Lifecycle (TypeSpec)
 
 ### AUTHORITATIVE REFERENCE
-For all TypeSpec-based SDK workflows (generation, building, validation, testing, versioning, and release), follow #file:../eng/common/instructions/azsdk-tools/local-sdk-workflow.instructions.md
+For all TypeSpec-based SDK workflows (generation, building, validation, testing, versioning, and release), follow #file:skills/azsdk-common-generate-sdk-locally/SKILL.md
 
 ### DEFAULT BEHAVIORS
 - **Repository:** Use the current workspace as the local SDK repository unless the user specifies a different path.
@@ -164,4 +164,4 @@ These rules apply to management-plane SDK packages located at `sdk/*/azure-mgmt-
 
 ## SDK release
 
-For detailed workflow instructions, see [SDK Release](https://github.com/Azure/azure-sdk-for-python/blob/main/eng/common/instructions/copilot/sdk-release.instructions.md).
+For detailed workflow instructions, see [SDK Release](skills/azsdk-common-sdk-release/SKILL.md).