website/docs: remove � (cherry-pick #11823) #25414

Job	Run time
lint-golint	53s
test-unittest	2m 50s
ci-outpost-mark	1s
build-container (proxy)	3m 20s
build-binary (proxy, linux, amd64)	1m 42s
build-container (ldap)	3m 34s
build-binary (proxy, linux, arm64)	1m 43s
build-container (radius)	2m 50s
build-binary (ldap, linux, amd64)	1m 40s
build-container (rac)	2m 51s
build-binary (ldap, linux, arm64)	1m 45s
build-binary (radius, linux, amd64)	1m 40s
build-binary (radius, linux, arm64)	1m 48s
build-binary (rac, linux, amd64)	1m 37s
build-binary (rac, linux, arm64)	1m 55s
	30m 9s

Provide feedback