Auto merge of #6902 - ignatenkobrain:patch-1, r=alexcrichton

chore: Update opener to 0.4

Author: bors

Cargo.toml

@@ -45,7 +45,7 @@ libc = "0.2"
 log = "0.4.6"
 libgit2-sys = "0.7.9"
 num_cpus = "1.0"
-opener = "0.3.0"
+opener = "0.4"
 rustfix = "0.4.4"
 same-file = "1"
 semver = { version = "0.9.0", features = ["serde"] }