ci: exclude Microsoft Store & VS Code links from lychee link check (#1645)

Adds targeted path excludes to .lychee.toml for apps.microsoft.com/store/detail/ and code.visualstudio.com root, which return 403 to the link-checker bot. Narrowed from host-wide per review feedback. Build & Verify (link check) green.

Author: sbryngelson

.lychee.toml

@@ -29,4 +29,6 @@ exclude = [
     "https://sc22\\.supercomputing\\.org",              # Returns 415 to automated requests
     "https://strawberryperl\\.com",                    # Frequently times out
     "https://www\\.olcf\\.ornl\\.gov/summit",            # Returns 503 to automated requests
+    "https://apps\\.microsoft\\.com/store/detail/",  # Microsoft Store detail pages return 403 to automated requests
+    "https://code\\.visualstudio\\.com/?$",           # Root page returns 403 to automated requests
 ]