bundler: failed to load command: jekyll (/home/runner/work/blog/blog/vendor/bundle/ruby/3.3.0/bin/jekyll)
/opt/hostedtoolcache/Ruby/3.3.4/x64/lib/ruby/3.3.0/psych/parser.rb:62:in `_native_parse': (/home/runner/work/blog/blog/_config.yml): could not find expected ':' while scanning a simple key at line 21 column 1 (Psych::SyntaxError)
	from /opt/hostedtoolcache/Ruby/3.3.4/x64/lib/ruby/3.3.0/psych/parser.rb:62:in `parse'
	from /home/runner/work/blog/blog/vendor/bundle/ruby/3.3.0/gems/safe_yaml-1.0.5/lib/safe_yaml/load.rb:143:in `load'
	from /home/runner/work/blog/blog/vendor/bundle/ruby/3.3.0/gems/safe_yaml-1.0.5/lib/safe_yaml/load.rb:157:in `block in load_file'
	from /home/runner/work/blog/blog/vendor/bundle/ruby/3.3.0/gems/safe_yaml-1.0.5/lib/safe_yaml/load.rb:157:in `open'
	from /home/runner/work/blog/blog/vendor/bundle/ruby/3.3.0/gems/safe_yaml-1.0.5/lib/safe_yaml/load.rb:157:in `load_file'
	from /home/runner/work/blog/blog/vendor/bundle/ruby/3.3.0/gems/jekyll-4.3.4/lib/jekyll/configuration.rb:129:in `safe_load_file'
	from /home/runner/work/blog/blog/vendor/bundle/ruby/3.3.0/gems/jekyll-4.3.4/lib/jekyll/configuration.rb:167:in `read_config_file'
	from /home/runner/work/blog/blog/vendor/bundle/ruby/3.3.0/gems/jekyll-4.3.4/lib/jekyll/configuration.rb:198:in `block in read_config_files'
	from /home/runner/work/blog/blog/vendor/bundle/ruby/3.3.0/gems/jekyll-4.3.4/lib/jekyll/configuration.rb:195:in `each'
	from /home/runner/work/blog/blog/vendor/bundle/ruby/3.3.0/gems/jekyll-4.3.4/lib/jekyll/configuration.rb:195:in `read_config_files'
	from /home/runner/work/blog/blog/vendor/bundle/ruby/3.3.0/gems/jekyll-4.3.4/lib/jekyll.rb:118:in `configuration'
	from /home/runner/work/blog/blog/vendor/bundle/ruby/3.3.0/gems/jekyll-4.3.4/lib/jekyll/command.rb:44:in `configuration_from_options'
	from /home/runner/work/blog/blog/vendor/bundle/ruby/3.3.0/gems/jekyll-4.3.4/lib/jekyll/commands/build.rb:29:in `process'
	from /home/runner/work/blog/blog/vendor/bundle/ruby/3.3.0/gems/jekyll-4.3.4/lib/jekyll/command.rb:91:in `block in process_with_graceful_fail'
	from /home/runner/work/blog/blog/vendor/bundle/ruby/3.3.0/gems/jekyll-4.3.4/lib/jekyll/command.rb:91:in `each'
	from /home/runner/work/blog/blog/vendor/bundle/ruby/3.3.0/gems/jekyll-4.3.4/lib/jekyll/command.rb:91:in `process_with_graceful_fail'
	from /home/runner/work/blog/blog/vendor/bundle/ruby/3.3.0/gems/jekyll-4.3.4/lib/jekyll/commands/build.rb:18:in `block (2 levels) in init_with_program'