semgrep: fix linkage to gcc on Linux

The current bottle ships a semgrep that links against gcc,
which went unnoticed before.
This change makes the linkage explicit.

Closes #90199.

Signed-off-by: Branch Vincent <19800529+branchvincent@users.noreply.github.com>
Signed-off-by: BrewTestBot <1589480+BrewTestBot@users.noreply.github.com>

Formula/semgrep.rb

@@ -7,6 +7,7 @@ class Semgrep < Formula
       tag:      "v0.75.0",
       revision: "d786313c7bfdaac0c53e07cffc6fcb91a1b5c0ee"
   license "LGPL-2.1-only"
+  revision 1
   head "https://github.com/returntocorp/semgrep.git", branch: "develop"
 
   livecheck do
@@ -36,7 +37,7 @@ class Semgrep < Formula
   uses_from_macos "rsync" => :build
 
   on_linux do
-    depends_on "gcc" => [:build, :test]
+    depends_on "gcc"
   end
 
   fails_with gcc: "5"