Bump rdf-vocab from 3.2.1 to 3.2.3

Bumps [rdf-vocab](https://github.com/ruby-rdf/rdf-vocab) from 3.2.1 to 3.2.3.
- [Release notes](https://github.com/ruby-rdf/rdf-vocab/releases)
- [Commits](ruby-rdf/rdf-vocab@3.2.1...3.2.3)

---
updated-dependencies:
- dependency-name: rdf-vocab
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Gemfile

@@ -22,7 +22,7 @@ gem 'simple_form'
 gem 'acts_as_rdfable', github: 'ualbertalib/acts_as_rdfable', tag: '0.4.0'
 gem 'rdf', '~> 3.2.9'
 gem 'rdf-n3', '~> 3.2.1'
-gem 'rdf-vocab', '~> 3.2.1' # this gem changed predicate names without warning, be cautious and test with migrations
+gem 'rdf-vocab', '~> 3.2.3' # this gem changed predicate names without warning, be cautious and test with migrations
 
 # Database stuff
 gem 'connection_pool'

Gemfile.lock

@@ -434,7 +434,7 @@ GEM
       rdf (~> 3.2)
       sparql (~> 3.2)
       sxp (~> 1.2)
-    rdf-vocab (3.2.1)
+    rdf-vocab (3.2.3)
       rdf (~> 3.2, >= 3.2.4)
     rdf-xsd (3.2.0)
       rdf (~> 3.2)
@@ -658,7 +658,7 @@ DEPENDENCIES
   rdf (~> 3.2.9)
   rdf-isomorphic (~> 3.2.1)
   rdf-n3 (~> 3.2.1)
-  rdf-vocab (~> 3.2.1)
+  rdf-vocab (~> 3.2.3)
   redcarpet (~> 3.5, >= 3.5.1)
   redis (~> 4.8)
   rollbar