Add arch

Gemfile.lock

@@ -16,7 +16,6 @@ GEM
     parser (3.3.0.5)
       ast (~> 2.4.1)
       racc
-    power_assert (2.0.3)
     pry (0.14.1)
       coderay (~> 1.1)
       method_source (~> 1.0)
@@ -55,13 +54,16 @@ GEM
     rubocop-ast (1.30.0)
       parser (>= 3.2.1.0)
     ruby-progressbar (1.13.0)
-    test-unit (3.6.2)
-      power_assert
     unicode-display_width (2.5.0)
 
 PLATFORMS
-  arm64-darwin-21
-  arm64-darwin-22
+  aarch64-linux
+  arm64-darwin
+  x64-mingw-ucrt
+  x64-mingw32
+  x86_64-darwin
+  x86_64-linux
+  x86_64-linux-musl
 
 DEPENDENCIES
   pgp-rb!
@@ -70,7 +72,6 @@ DEPENDENCIES
   rb_sys (~> 0.9)
   rspec (~> 3.13)
   rubocop
-  test-unit (~> 3.5)
 
 BUNDLED WITH
    2.2.33