Bump chefspec from 7.1.2 to 7.2.1

Bumps [chefspec](https://github.com/sethvargo/chefspec) from 7.1.2 to 7.2.1.
- [Release notes](https://github.com/sethvargo/chefspec/releases)
- [Changelog](https://github.com/chefspec/chefspec/blob/master/CHANGELOG.md)
- [Commits](chefspec/chefspec@v7.1.2...v7.2.1)

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

Author: dependabot-support

Gemfile.lock

@@ -58,10 +58,10 @@ GEM
     celluloid-io (0.16.2)
       celluloid (>= 0.16.0)
       nio4r (>= 1.1.0)
-    chef (12.22.1)
+    chef (12.22.3)
       addressable
       bundler (>= 1.10)
-      chef-config (= 12.22.1)
+      chef-config (= 12.22.3)
       chef-zero (>= 4.8, < 13)
       diff-lcs (~> 1.2, >= 1.2.4)
       erubis (~> 2.7)
@@ -90,7 +90,7 @@ GEM
     chef-api (0.8.0)
       logify (~> 0.1)
       mime-types
-    chef-config (12.22.1)
+    chef-config (12.22.3)
       addressable
       fuzzyurl
       mixlib-config (~> 2.0)
@@ -103,9 +103,9 @@ GEM
       mixlib-log (~> 1.3)
       rack (~> 2.0)
       uuidtools (~> 2.1)
-    chefspec (7.1.2)
+    chefspec (7.2.1)
       chef (>= 12.14.89)
-      fauxhai (>= 4, < 6)
+      fauxhai (>= 4)
       rspec (~> 3.0)
     cleanroom (1.0.0)
     coderay (1.1.2)
@@ -122,7 +122,7 @@ GEM
       multipart-post (>= 1.2, < 3)
     faraday-http-cache (2.0.0)
       faraday (~> 0.8)
-    fauxhai (5.6.0)
+    fauxhai (6.2.0)
       net-ssh
     ffi (1.9.23)
     ffi-yajl (2.3.1)
@@ -210,7 +210,7 @@ GEM
     mini_portile2 (2.3.0)
     minitar (0.6.1)
     minitest (5.11.3)
-    mixlib-archive (0.4.1)
+    mixlib-archive (0.4.6)
       mixlib-log
     mixlib-authentication (1.4.2)
     mixlib-cli (1.7.0)
@@ -270,7 +270,7 @@ GEM
       coderay (~> 1.1.0)
       method_source (~> 0.9.0)
     public_suffix (3.0.2)
-    rack (2.0.4)
+    rack (2.0.5)
     rainbow (3.0.0)
     rake (12.3.1)
     rb-fsevent (0.10.3)
@@ -342,7 +342,7 @@ GEM
     solve (4.0.0)
       molinillo (~> 0.6)
       semverse (>= 1.1, < 3.0)
-    specinfra (2.73.2)
+    specinfra (2.73.3)
       net-scp
       net-ssh (>= 2.7, < 5.0)
       net-telnet