fix(ci): pin socket2 to 0.5.10

- it's required to pin to `0.5.10` in order to fix MSRV CI, the `0.6.0`
  is being pulled by `hyper-util 0.1.16`.

Author: oleonardolima

.github/workflows/cont_integration.yml

@@ -68,6 +68,7 @@ jobs:
         cargo update -p parking_lot --precise "0.12.3"
         cargo update -p parking_lot_core --precise "0.9.10"
         cargo update -p lock_api --precise "0.4.12"
+        cargo update -p socket2@0.6.0 --precise "0.5.10"
 
         cargo update -p bzip2-sys --precise "0.1.12+1.0.8" # dev-dependency
     - name: Build

README.md

@@ -33,4 +33,5 @@ cargo update -p tracing-core --precise "0.1.33"
 cargo update -p parking_lot --precise "0.12.3"
 cargo update -p parking_lot_core --precise "0.9.10"
 cargo update -p lock_api --precise "0.4.12"
+cargo update -p socket2@0.6.0 --precise "0.5.10"
 ```