chore(deps): Bump to include fixes for pulsar-rs

We need to start testing the fixes coming in the next release of
pulsar-rs. We have contributed some of these fixes and it will help get
us off topic regex while being more fault tolerant. An official release
will come soon and will be a noop except for the official version bump
at that time.

Ref: LOG-22978

Author: darinspivey

Cargo.lock

@@ -386,7 +386,7 @@ openssl-probe = { version = "0.1.6", default-features = false }
 ordered-float = { version = "4.6.0", default-features = false, features = ["serde"] }
 percent-encoding = { version = "2.3.1", default-features = false }
 postgres-openssl = { version = "0.5.1", default-features = false, features = ["runtime"], optional = true }
-pulsar = { git = "https://github.com/mezmo/pulsar-rs", branch = "fix_connection_manager_race", default-features = false, features = ["tokio-runtime", "auth-oauth2", "flate2", "lz4", "snap", "zstd"], optional = true }
+pulsar = { git = "https://github.com/streamnative/pulsar-rs", rev = "771b6ef81b55577095769736eb47932fe64788bb", default-features = false, features = ["tokio-runtime", "auth-oauth2", "flate2", "lz4", "snap", "zstd"], optional = true }
 quick-junit = { version = "0.5.1" }
 rand.workspace = true
 rand_distr.workspace = true