Bump bumpalo from 3.4.0 to 3.12.0 in /benchmarks

Bumps [bumpalo](https://github.com/fitzgen/bumpalo) from 3.4.0 to 3.12.0.
- [Release notes](https://github.com/fitzgen/bumpalo/releases)
- [Changelog](https://github.com/fitzgen/bumpalo/blob/main/CHANGELOG.md)
- [Commits](https://github.com/fitzgen/bumpalo/compare/3.4.0...3.12.0)

---
updated-dependencies:
- dependency-name: bumpalo
  dependency-type: indirect
...

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

benchmarks/Cargo.lock

@@ -1,5 +1,7 @@
 # This file is automatically @generated by Cargo.
 # It is not intended for manual editing.
+version = 3
+
 [[package]]
 name = "atty"
 version = "0.2.14"
@@ -37,9 +39,9 @@ dependencies = [
 
 [[package]]
 name = "bumpalo"
-version = "3.4.0"
+version = "3.12.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2e8c087f005730276d1096a652e92a8bacee2e2472bcc9715a74d2bec38b5820"
+checksum = "0d261e256854913907f67ed06efbc3338dfe6179796deefc1ff763fc1aee5535"
 
 [[package]]
 name = "byteorder"
@@ -95,6 +97,12 @@ version = "0.7.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b3a71ab494c0b5b860bdc8407ae08978052417070c2ced38573a9157ad75b8ac"
 
+[[package]]
+name = "cp437"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "891a48ae269a368d5e45e0b13ee401f90d3d400da92d881f7cb67bc9da711c14"
+
 [[package]]
 name = "criterion"
 version = "0.3.3"
@@ -397,9 +405,10 @@ dependencies = [
 
 [[package]]
 name = "phetch"
-version = "1.0.4-dev"
+version = "1.2.0"
 dependencies = [
  "atty",
+ "cp437",
  "lazy_static",
  "libc",
  "native-tls",