Pin pin_project_lite to older version due to external_type_check compatibility (#2239)

Author: lalitb

Cargo.toml

@@ -30,7 +30,7 @@ hyper-util = "0.1"
 log = "0.4.21"
 once_cell = "1.13"
 ordered-float = "4.0"
-pin-project-lite = "0.2"
+pin-project-lite = "=0.2.14" # 0.2.15 is failing for cargo-check-external-types
 prost = "0.13"
 prost-build = "0.13"
 prost-types = "0.13"