update PKGBUILD with gcc as dep (#5)

issue: #3
Reviewed-on: http://192.168.1.227:3000/sfrembling/pallet/pulls/5
Co-authored-by: godsfryingpan <sfrembling@gmail.com>
Co-committed-by: godsfryingpan <sfrembling@gmail.com>

PKGBUILD

@@ -6,7 +6,7 @@ pkgdesc="A simple C project manager inspired by Cargo"
 arch=('x86_64')
 url=""
 license=('MIT')
-depends=()
+depends=('gcc')
 makedepends=('rust' 'cargo')
 source=()