update to csl/citeproc-ruby 2.0

Gemfile

@@ -4,6 +4,6 @@ source 'https://rubygems.org'
 gem 'rake'
 gem 'rspec'
 gem 'nokogiri'
-gem 'csl', '~>1.0'
+gem 'csl', '~>2.0'
 gem 'fuubar'
 gem 'sheldon', git: 'https://github.com/citation-style-language/Sheldon.git'

Gemfile.lock

@@ -1,10 +1,9 @@
 GIT
   remote: https://github.com/citation-style-language/Sheldon.git
-  revision: f5023127f062139c40e03617b230d827a6c16002
+  revision: 95838163331bf81cbfa4c5ffda2c82121247e757
   specs:
     sheldon (1.0.30)
-      citeproc-ruby
-      csl-styles
+      citeproc-ruby (~> 2.0)
       diffy
       dotenv
       erubis (~> 2.7)
@@ -24,14 +23,12 @@ GEM
       public_suffix (>= 2.0.2, < 5.0)
     citeproc (1.0.10)
       namae (~> 1.0)
-    citeproc-ruby (1.1.14)
+    citeproc-ruby (2.0.0)
       citeproc (~> 1.0, >= 1.0.9)
-      csl (~> 1.6)
-    csl (1.6.0)
+      csl (~> 2.0)
+    csl (2.0.0)
       namae (~> 1.0)
       rexml
-    csl-styles (1.0.1.11)
-      csl (~> 1.0)
     diff-lcs (1.5.0)
     diffy (3.4.0)
     dotenv (2.7.6)
@@ -68,6 +65,8 @@ GEM
     nokogiri (1.12.5)
       mini_portile2 (~> 2.6.1)
       racc (~> 1.4)
+    nokogiri (1.12.5-x64-mingw32)
+      racc (~> 1.4)
     octokit (4.21.0)
       faraday (>= 0.9)
       sawyer (~> 0.8.0, >= 0.5.3)
@@ -99,9 +98,10 @@ GEM
 
 PLATFORMS
   ruby
+  x64-mingw32
 
 DEPENDENCIES
-  csl (~> 1.0)
+  csl (~> 2.0)
   fuubar
   nokogiri
   rake
@@ -112,4 +112,4 @@ RUBY VERSION
    ruby 3.0.2p107
 
 BUNDLED WITH
-   2.2.22
+   2.2.32