Bump pin-project from 0.4.7 to 0.4.8

Bumps [pin-project](https://github.com/taiki-e/pin-project) from 0.4.7 to 0.4.8.
- [Release notes](https://github.com/taiki-e/pin-project/releases)
- [Changelog](https://github.com/taiki-e/pin-project/blob/master/CHANGELOG.md)
- [Commits](https://github.com/taiki-e/pin-project/compare/v0.4.7...v0.4.8)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Cargo.lock

@@ -794,18 +794,18 @@ dependencies = [
 
 [[package]]
 name = "pin-project"
-version = "0.4.7"
+version = "0.4.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "75fca1c4ff21f60ca2d37b80d72b63dab823a9d19d3cda3a81d18bc03f0ba8c5"
+checksum = "7804a463a8d9572f13453c516a5faea534a2403d7ced2f0c7e100eeff072772c"
 dependencies = [
  "pin-project-internal",
 ]
 
 [[package]]
 name = "pin-project-internal"
-version = "0.4.7"
+version = "0.4.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6544cd4e4ecace61075a6ec78074beeef98d58aa9a3d07d053d993b2946a90d6"
+checksum = "385322a45f2ecf3410c68d2a549a4a2685e8051d0f278e39743ff4e451cb9b3f"
 dependencies = [
  "proc-macro2",
  "quote",