Bump open dependency to 4.0

Signed-off-by: Michel Alexandre Salim <salimma@fedoraproject.org>

dua-cli-fix-metadata.diff

@@ -1,6 +1,15 @@
---- dua-cli-2.17.8/Cargo.toml	1970-01-01T00:00:01+00:00
-+++ dua-cli-2.17.8/Cargo.toml	2022-07-22T11:35:32.851196+00:00
-@@ -129,7 +129,3 @@
+--- a/Cargo.toml
++++ b/Cargo.toml
+@@ -78,7 +78,7 @@ version = "0.6.0"
+ version = "1.10.0"
+ 
+ [dependencies.open]
+-version = "3.0"
++version = "4.0"
+ optional = true
+ 
+ [dependencies.petgraph]
+@@ -129,7 +129,3 @@ tui-unix = [
      "crosstermion/tui-react-termion",
      "tui-shared",
  ]

rust-dua-cli.spec

@@ -16,6 +16,7 @@ Source0:        %{crates_source}
 Source1:        LICENSE.dependencies
 # Initial patched metadata
 # * drop macos-specific dependencies
+# * bump open from 3.0 to 4.0
 Patch0:         dua-cli-fix-metadata.diff
 
 ExclusiveArch:  %{rust_arches}