Upgrade actix-identity crate from 0.7 to 0.8 version (#1285)

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

juniper_actix/Cargo.toml

@@ -37,7 +37,7 @@ serde_json = "1.0.18"
 
 [dev-dependencies]
 actix-cors = "0.7"
-actix-identity = "0.7"
+actix-identity = "0.8"
 actix-rt = "2.0"
 actix-test = "0.1"
 async-stream = "0.3"