Update x86_64_repo.yml for emt3

Author: cheeyanglee

config/osv/edge-microvisor-toolkit/emt3/providerconfigs/x86_64_repo.yml

@@ -9,6 +9,6 @@ repoGPGCheck: true  # Enabled with Intel GPG key
 enabled: true
 gpgKeys:
   - "https://raw.githubusercontent.com/open-edge-platform/edge-microvisor-toolkit/refs/heads/3.0/SPECS/edge-repos/INTEL-RPM-GPG-KEY"
-  - "https://raw.githubusercontent.com/cheeyanglee/edge-microvisor-toolkit/e2e05b402c056bbf4ba1a429490b3c37f4d659d7/SPECS/edge-repos/INTEL-RPM-GPG-KEY-26"
+  - "https://raw.githubusercontent.com/open-edge-platform/edge-microvisor-toolkit/refs/heads/3.0/SPECS/edge-repos/INTEL-RPM-GPG-KEY-26"
 # Repository configuration URL (for reference): https://raw.githubusercontent.com/open-edge-platform/edge-microvisor-toolkit/refs/heads/3.0/SPECS/edge-repos/edge-base.repo
 buildPath: "./builds/emt3"  # Will be replaced with temp_dir/builds/emt3 at runtime