Download Fluentd from RubyGems

[ashie]

Currently Fluentd is downloaded from GitHub, not RubyGems:

fluent-package-builder/td-agent/Gemfile

Lines 24 to 35 in 95fad67

	if ENV["INSTALL_GEM_FROM_LOCAL_REPO"]
	# During build process, pre-built fluentd gem will be installed
	# from this local repository, this way is used to avoid embedding full-path
	# into managed Gemfile.lock
	source FLUENTD_LOCAL_GEM_REPO do
	gem "fluentd"
	end
	else
	# Lock to specific revision
	git_source(:github) {|repo_name| "https://github.com/#{repo_name}" }
	gem "fluentd", github: "fluent/fluentd", ref: FLUENTD_REVISION
	end

But, now a day we don't bundle intermediate revision of Fluentd.
So I think using formal version of Fluentd gem is more reasonable.

[github-actions]

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