Merge pull request #5771 from rubygems/dependabot/cargo/test/rubygems/test_gem_ext_cargo_builder/custom_name/rb-sys-0.9.26

Bump rb-sys from 0.9.20 to 0.9.26 in /test/rubygems/test_gem_ext_cargo_builder/custom_name

(cherry picked from commit 0497485)

Author: deivid-rodriguez

test/rubygems/test_gem_ext_cargo_builder/custom_name/Cargo.lock

@@ -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"] }