Update dependency tailwindcss-rails to v2.6.0 (#37)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Gemfile.lock

@@ -118,8 +118,8 @@ GEM
       activesupport (>= 6.0.0)
       railties (>= 6.0.0)
     io-console (0.7.2)
-    irb (1.12.0)
-      rdoc
+    irb (1.13.0)
+      rdoc (>= 4.0.0)
       reline (>= 0.4.2)
     jbuilder (2.12.0)
       actionview (>= 5.0.0)
@@ -245,7 +245,7 @@ GEM
     redis-client (0.22.0)
       connection_pool
     regexp_parser (2.9.0)
-    reline (0.5.4)
+    reline (0.5.5)
       io-console (~> 0.5)
     rexml (3.2.6)
     rubyzip (2.3.2)
@@ -290,14 +290,14 @@ GEM
     stringio (3.1.0)
     syntax_tree (6.2.0)
       prettier_print (>= 1.2.0)
-    tailwindcss-rails (2.5.0-aarch64-linux)
-      railties (>= 6.0.0)
-    tailwindcss-rails (2.5.0-arm64-darwin)
-      railties (>= 6.0.0)
-    tailwindcss-rails (2.5.0-x86_64-darwin)
-      railties (>= 6.0.0)
-    tailwindcss-rails (2.5.0-x86_64-linux)
-      railties (>= 6.0.0)
+    tailwindcss-rails (2.6.0-aarch64-linux)
+      railties (>= 7.0.0)
+    tailwindcss-rails (2.6.0-arm64-darwin)
+      railties (>= 7.0.0)
+    tailwindcss-rails (2.6.0-x86_64-darwin)
+      railties (>= 7.0.0)
+    tailwindcss-rails (2.6.0-x86_64-linux)
+      railties (>= 7.0.0)
     tapioca (0.13.3)
       bundler (>= 2.2.25)
       netrc (>= 0.11.0)