Rollup merge of #103744 - palfrey:unwind-upgrade-cc, r=Mark-Simulacrum

Upgrade cc for working is_flag_supported on cross-compiles

rust-lang/rust#85806 fixed unwind v.s gcc support on later Android ndks using `is_flag_supported`. However, due to rust-lang/cc-rs#675, this didn't work properly on cross-compiles. rust-lang/cc-rs@3eeb50b fixes this, and was released in cc 1.0.74, hence the upgrade

Author: Manishearth

unwind/Cargo.toml

@@ -20,7 +20,7 @@ compiler_builtins = "0.1.0"
 cfg-if = "1.0"
 
 [build-dependencies]
-cc = "1.0.69"
+cc = "1.0.76"
 
 [features]