chore(deps): update dependency ruby-lsp to v0.26.5

Author: renovate[bot]

test-fixtures/ruby-workspace/Gemfile.lock

@@ -1,7 +1,15 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    ruby-lsp (0.18.1)
+    language_server-protocol (3.17.0.5)
+    logger (1.7.0)
+    prism (1.8.0)
+    rbs (3.10.2)
+      logger
+    ruby-lsp (0.26.5)
+      language_server-protocol (~> 3.17.0)
+      prism (>= 1.2, < 2.0)
+      rbs (>= 3, < 5)
 
 PLATFORMS
   ruby