Update kramdown requirement from ~> 1.13 to >= 1.13, < 3.0 (#309)

Updates the requirements on [kramdown](https://github.com/gettalong/kramdown) to permit the latest version.
- [Release notes](https://github.com/gettalong/kramdown/releases)
- [Changelog](https://github.com/gettalong/kramdown/blob/master/doc/news.page)
- [Commits](https://github.com/gettalong/kramdown/commits)

---
updated-dependencies:
- dependency-name: kramdown
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Gemfile.lock

@@ -9,44 +9,34 @@ PATH
       jbuilder (~> 2.5)
       json (~> 2.0)
       json-schema (~> 2.7)
-      kramdown (~> 1.13)
+      kramdown (>= 1.13, < 3.0)
       nokogiri (~> 1.7)
       thor (~> 0.19)
       uuidtools (~> 2.1)
 
 GEM
   remote: https://rubygems.org/
   specs:
-    actionview (7.1.2)
-      activesupport (= 7.1.2)
+    actionview (5.2.8.1)
+      activesupport (= 5.2.8.1)
       builder (~> 3.1)
-      erubi (~> 1.11)
-      rails-dom-testing (~> 2.2)
-      rails-html-sanitizer (~> 1.6)
-    activesupport (7.1.2)
-      base64
-      bigdecimal
+      erubi (~> 1.4)
+      rails-dom-testing (~> 2.0)
+      rails-html-sanitizer (~> 1.0, >= 1.0.3)
+    activesupport (5.2.8.1)
       concurrent-ruby (~> 1.0, >= 1.0.2)
-      connection_pool (>= 2.2.5)
-      drb
-      i18n (>= 1.6, < 2)
-      minitest (>= 5.1)
-      mutex_m
-      tzinfo (~> 2.0)
+      i18n (>= 0.7, < 2)
+      minitest (~> 5.1)
+      tzinfo (~> 1.1)
     addressable (2.8.5)
       public_suffix (>= 2.0.2, < 6.0)
     adiwg-mdcodes (2.8.4)
       json (~> 2.0)
     adiwg-mdjson_schemas (2.8.1)
-    base64 (0.2.0)
-    bigdecimal (3.1.4)
     builder (3.2.4)
     coderay (1.1.3)
     concurrent-ruby (1.2.2)
-    connection_pool (2.4.1)
     crass (1.0.6)
-    drb (2.2.0)
-      ruby2_keywords
     erubi (1.12.0)
     i18n (1.14.1)
       concurrent-ruby (~> 1.0)
@@ -56,32 +46,33 @@ GEM
     json (2.6.3)
     json-schema (2.8.1)
       addressable (>= 2.4)
-    kramdown (1.17.0)
-    loofah (2.21.4)
+    kramdown (2.4.0)
+      rexml
+    loofah (2.21.1)
       crass (~> 1.0.2)
-      nokogiri (>= 1.12.0)
+      nokogiri (>= 1.5.9)
+    mini_portile2 (2.4.0)
     minitest (5.20.0)
-    mutex_m (0.2.0)
-    nokogiri (1.15.4-arm64-darwin)
-      racc (~> 1.4)
-    public_suffix (5.0.3)
-    racc (1.7.3)
-    rails-dom-testing (2.2.0)
+    nokogiri (1.10.10)
+      mini_portile2 (~> 2.4.0)
+    public_suffix (4.0.7)
+    rails-dom-testing (2.1.1)
       activesupport (>= 5.0.0)
       minitest
       nokogiri (>= 1.6)
-    rails-html-sanitizer (1.6.0)
-      loofah (~> 2.21)
-      nokogiri (~> 1.14)
+    rails-html-sanitizer (1.5.0)
+      loofah (~> 2.19, >= 2.19.1)
     rake (10.5.0)
-    ruby2_keywords (0.0.5)
+    rexml (3.2.5)
     thor (0.20.3)
-    tzinfo (2.0.6)
-      concurrent-ruby (~> 1.0)
+    thread_safe (0.3.6)
+    tzinfo (1.2.11)
+      thread_safe (~> 0.1)
     uuidtools (2.2.0)
 
 PLATFORMS
   arm64-darwin-22
+  x86_64-linux
 
 DEPENDENCIES
   adiwg-mdtranslator!

adiwg-mdtranslator.gemspec

@@ -37,7 +37,7 @@ Gem::Specification.new do |spec|
    spec.add_runtime_dependency "adiwg-mdjson_schemas", "2.8.1"
    spec.add_runtime_dependency "adiwg-mdcodes", "2.8.4"
    spec.add_runtime_dependency "jbuilder", "~> 2.5"
-   spec.add_runtime_dependency "kramdown", "~> 1.13"
+   spec.add_runtime_dependency "kramdown", ">= 1.13", "< 3.0"
    spec.add_runtime_dependency "coderay", "~> 1.1"
    spec.add_runtime_dependency "nokogiri", "~> 1.7"