Bump proc-macro-warning from 0.4.1 to 0.4.2 (#1376)

Bumps [proc-macro-warning](https://github.com/ggwpez/proc-macro-warning) from 0.4.1 to 0.4.2.
- [Release notes](https://github.com/ggwpez/proc-macro-warning/releases)
- [Commits](https://github.com/ggwpez/proc-macro-warning/compare/v0.4.1...v0.4.2)

---
updated-dependencies:
- dependency-name: proc-macro-warning
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Cargo.lock

@@ -13423,9 +13423,9 @@ checksum = "dc375e1527247fe1a97d8b7156678dfe7c1af2fc075c9a4db3690ecd2a148068"
 
 [[package]]
 name = "proc-macro-warning"
-version = "0.4.1"
+version = "0.4.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "70550716265d1ec349c41f70dd4f964b4fd88394efe4405f0c1da679c4799a07"
+checksum = "3d1eaa7fa0aa1929ffdf7eeb6eac234dde6268914a14ad44d23521ab6a9b258e"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -19379,7 +19379,7 @@ checksum = "97fee6b57c6a41524a810daee9286c02d7752c4253064d0b05472833a438f675"
 dependencies = [
  "cfg-if",
  "digest 0.10.7",
- "rand 0.7.3",
+ "rand 0.8.5",
  "static_assertions",
 ]
 

substrate/frame/support/procedural/Cargo.toml

@@ -23,7 +23,7 @@ proc-macro2 = "1.0.56"
 quote = "1.0.28"
 syn = { version = "2.0.16", features = ["full"] }
 frame-support-procedural-tools = { path = "tools" }
-proc-macro-warning = { version = "0.4.1", default-features = false }
+proc-macro-warning = { version = "0.4.2", default-features = false }
 macro_magic = { version = "0.4.2", features = ["proc_support"] }
 expander = "2.0.0"