fix(jpki-cli): Use on_intel directive

Author: siketyan

Formula/jpki-cli.rb

@@ -18,11 +18,13 @@ def install
   end
 
   on_linux do
-    url "https://github.com/siketyan/jpki-rs/releases/download/0.3.0/jpki-cli-x86_64-unknown-linux-gnu.tar.gz"
-    sha256 "47f77a6d374059caa48566806fc72e30c5e53a876b0851c9ac49bc07d5ae8117"
+    on_intel do
+      url "https://github.com/siketyan/jpki-rs/releases/download/0.3.0/jpki-cli-x86_64-unknown-linux-gnu.tar.gz"
+      sha256 "47f77a6d374059caa48566806fc72e30c5e53a876b0851c9ac49bc07d5ae8117"
 
-    def install
-      bin.install "jpki-cli"
+      def install
+        bin.install "jpki-cli"
+      end
     end
   end