fix(pulsar): update pulsar -> 0.8.3

Fixes https://emqx.atlassian.net/browse/EMQX-10229

See https://github.com/emqx/pulsar-client-erl/pull/59

Fixes a case_clause error that could arise from race conditions.

apps/emqx_bridge_pulsar/rebar.config

@@ -2,7 +2,7 @@
 
 {erl_opts, [debug_info]}.
 {deps, [
-    {pulsar, {git, "https://github.com/emqx/pulsar-client-erl.git", {tag, "0.8.2"}}},
+    {pulsar, {git, "https://github.com/emqx/pulsar-client-erl.git", {tag, "0.8.3"}}},
     {emqx_connector, {path, "../../apps/emqx_connector"}},
     {emqx_resource, {path, "../../apps/emqx_resource"}},
     {emqx_bridge, {path, "../../apps/emqx_bridge"}}

changes/ee/fix-11025.en.md

@@ -0,0 +1 @@
+Fixed a `case_clause` error that could arise in race conditions in Pulsar Producer bridge.