chore: bump version to 0.8.6 in Cargo files

apps/hermes/server/Cargo.lock

@@ -1868,7 +1868,7 @@ checksum = "2304e00983f87ffb38b55b444b5e3b60a884b5d30c0fca7d82fe33449bbe55ea"
 
 [[package]]
 name = "hermes"
-version = "0.8.5"
+version = "0.8.6"
 dependencies = [
  "anyhow",
  "async-trait",

apps/hermes/server/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name        = "hermes"
-version     = "0.8.5"
+version     = "0.8.6"
 description = "Hermes is an agent that provides Verified Prices from the Pythnet Pyth Oracle."
 edition     = "2021"