Check that opentelemetry.io links are canonical (#4564)

Resolves @chalin's #4554 "how to avoid this in the future"

---------

Co-authored-by: Patrice Chalin <[email protected]>

Author: trask

Makefile

@@ -35,6 +35,19 @@ markdown-link-check:
 		-v \
 		home/repo
 
+    # check that all links to opentelemetry.io are canonical (no redirects)
+    # see https://github.com/open-telemetry/opentelemetry-specification/pull/4554
+	docker run --rm \
+		--mount 'type=bind,source=$(PWD),target=/home/repo' \
+		lycheeverse/lychee:sha-2aa22f8@sha256:2e3786630482c41f9f2dd081e06d7da1c36d66996e8cf6573409b8bc418d48c4 \
+		--config home/repo/.lychee.toml \
+		--root-dir /home/repo \
+		--max-redirects 0 \
+		--include '^https://opentelemetry.io/.*' \
+		--exclude '' \
+		-v \
+		home/repo
+
 # This target runs markdown-toc on all files that contain
 # a comment <!-- tocstop -->.
 #