Revert "bump librdkafka to tag 'v2.7.0'/'v2.6.1'"

olegrok · olegrok · commit 619146d76203 · 2025-05-02T00:22:09.000+03:00
This reverts commit 8d68897. Still can't update to the latest version due to confluentinc/librdkafka#5057
diff --git a/librdkafka b/librdkafka
@@ -1 +1 @@
-Subproject commit cb8c19c43011b66c4b08b25e5150455a247e1ff3
+Subproject commit b4c608570f796c18ff2211a7af876046d264d392
