Use rocm/triton's ToT of release/internal/3.4.x

Eventually, we want to use 3.5.x, but that's not available in
rocm/pytorch currently. So, using 3.4.x ToT

Author: pragupta

.ci/docker/ci_commit_pins/triton.txt

@@ -1 +1 @@
-6581064e5be2ac4ab0c198c1bb0e533a1900bbe3
+f9e5bf54a2fe1a6262a41b27b38180cdb6fae6a2