[rubygems/rubygems] Bump rb-sys

Bumps [rb-sys](https://github.com/oxidize-rb/rb-sys) from 0.9.20 to 0.9.26.
- [Release notes](https://github.com/oxidize-rb/rb-sys/releases)
- [Commits](https://github.com/oxidize-rb/rb-sys/compare/v0.9.20...v0.9.26)

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

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

https://github.com/rubygems/rubygems/commit/fe76234cf1

test/rubygems/test_gem_ext_cargo_builder/rust_ruby_example/Cargo.lock

@@ -98,9 +98,9 @@ dependencies = [
 
 [[package]]
 name = "linkify"
-version = "0.8.1"
+version = "0.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "28d9967eb7d0bc31c39c6f52e8fce42991c0cd1f7a2078326f0b7a399a584c8d"
+checksum = "96dd5884008358112bc66093362197c7248ece00d46624e2cf71e50029f8cff5"
 dependencies = [
  "memchr",
 ]
@@ -153,9 +153,9 @@ dependencies = [
 
 [[package]]
 name = "rb-sys"
-version = "0.9.20"
+version = "0.9.26"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0bfe4bf82794b8d3c995847a710da279afcd3bee40b993cd3296af259e5933c4"
+checksum = "723f7560e878bec9d1d49538a17fb6a4e3a04688c1dc6f14eef17918634a54e4"
 dependencies = [
  "bindgen",
  "linkify",
@@ -164,9 +164,9 @@ dependencies = [
 
 [[package]]
 name = "rb-sys-build"
-version = "0.9.20"
+version = "0.9.26"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bb614fa1ac5a7a96685537f123201b727dfa39e7e54e46c1027b3477266be93d"
+checksum = "2ccd93f0d9767385cd7a23076c47e3dca4c86144e510ea4c61d04dbce0cbac7e"
 dependencies = [
  "regex",
  "shell-words",

test/rubygems/test_gem_ext_cargo_builder/rust_ruby_example/Cargo.toml

@@ -7,4 +7,4 @@ edition = "2021"
 crate-type = ["cdylib"]
 
 [dependencies]
-rb-sys = { version = "0.9.20", features = ["gem"] }
+rb-sys = { version = "0.9.26", features = ["gem"] }