chore: bump `redbug` to 2.0.8

rebar.config

@@ -45,7 +45,7 @@
 
 {deps,
     [ {lc, {git, "https://github.com/emqx/lc.git", {tag, "0.3.2"}}}
-    , {redbug, "2.0.7"}
+    , {redbug, "2.0.8"}
     , {gpb, "4.19.5"} %% gpb only used to build, but not for release, pin it here to avoid fetching a wrong version due to rebar plugins scattered in all the deps
     , {typerefl, {git, "https://github.com/ieQu1/typerefl", {tag, "0.9.1"}}}
     , {gun, {git, "https://github.com/emqx/gun", {tag, "1.3.9"}}}