[rubygems/rubygems] Bump rb-sys in /test/rubygems/test_gem_ext_cargo_builder/custom_name

Bumps [rb-sys](https://github.com/oxidize-rb/rb-sys) from 0.9.46 to 0.9.48.
- [Release notes](https://github.com/oxidize-rb/rb-sys/releases)
- [Commits](https://github.com/oxidize-rb/rb-sys/compare/v0.9.46...v0.9.48)

---
updated-dependencies:
- dependency-name: rb-sys
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

test/rubygems/test_gem_ext_cargo_builder/custom_name/Cargo.lock

@@ -151,18 +151,18 @@ dependencies = [
 
 [[package]]
 name = "rb-sys"
-version = "0.9.46"
+version = "0.9.48"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b9f1cfd225389bd9333d93d393d0feeeacd191d97f9b1c881528ac1233c67f0f"
+checksum = "dfc6b8f3bf2d04b0180e243ceeb033b51ca267d839aa1c12fa25f262c17d0596"
 dependencies = [
  "rb-sys-build",
 ]
 
 [[package]]
 name = "rb-sys-build"
-version = "0.9.46"
+version = "0.9.48"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fad39a523a00dc5d4f6dcec077568d985807aa5bd03204a0ddf7c1f36544289c"
+checksum = "2cd591ebf22c45a44e51192fbeebba473aea0fe2a708b0b24665a13010c58b8d"
 dependencies = [
  "bindgen",
  "regex",

test/rubygems/test_gem_ext_cargo_builder/custom_name/Cargo.toml

@@ -7,4 +7,4 @@ edition = "2021"
 crate-type = ["cdylib"]
 
 [dependencies]
-rb-sys = "0.9.46"
+rb-sys = "0.9.48"