Update commander requirement from >= 4.4.3, < 4.7.0 to >= 4.4.3, < 5.1.0

Updates the requirements on [commander](https://github.com/commander-rb/commander) to permit the latest version.
- [Changelog](https://github.com/commander-rb/commander/blob/master/History.rdoc)
- [Commits](commander-rb/commander@v4.6.0...v5.0.0)

---
updated-dependencies:
- dependency-name: commander
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Gemfile.lock

@@ -2,7 +2,7 @@ PATH
   remote: .
   specs:
     vmfloaty (1.8.1)
-      commander (>= 4.4.3, < 4.7.0)
+      commander (>= 4.4.3, < 5.1.0)
       faraday (~> 1.5, >= 1.5.1)
 
 GEM
@@ -12,8 +12,8 @@ GEM
       public_suffix (>= 2.0.2, < 6.0)
     ast (2.4.2)
     coderay (1.1.3)
-    commander (4.6.0)
-      highline (~> 2.0.0)
+    commander (5.0.0)
+      highline (~> 3.0.0)
     crack (0.4.5)
       rexml
     diff-lcs (1.5.0)
@@ -42,7 +42,7 @@ GEM
     faraday-rack (1.0.0)
     faraday-retry (1.0.3)
     hashdiff (1.0.1)
-    highline (2.0.3)
+    highline (3.0.1)
     json (2.7.1)
     language_server-protocol (3.17.0.3)
     method_source (1.0.0)

vmfloaty.gemspec

@@ -21,6 +21,6 @@ Gem::Specification.new do |s|
   s.test_files = Dir['spec/**/*']
   s.require_path = 'lib'
 
-  s.add_dependency 'commander', '>= 4.4.3', '< 4.7.0'
+  s.add_dependency 'commander', '>= 4.4.3', '< 5.1.0'
   s.add_dependency 'faraday', '~> 1.5', '>= 1.5.1'
 end