fix: regression reporting unresolved references (#866)

Signed-off-by: squidfunk <martin.donath@squidfunk.com>

python/tests/unit/collectors/test_references.py

@@ -1624,6 +1624,10 @@ class TestFencedCodeBlocks:
                 b"``` python\n[text](href)\n```",
                 id="fenced-code-3-backticks-lang",
             ),
+            pytest.param(
+                b"```text\n[text](href)\n\nline two\n```",
+                id="fenced-code-3-backticks-lang-without-space",
+            ),
             pytest.param(
                 b"````\n[text](href)\n````",
                 id="fenced-code-4-backticks",