Merge pull request #61 from mhashizume/PA-5722/main/frozen-string #11

Job	Run time
Nightly / Puppet7 gem on Ruby 2.7 on Linux	1m 36s
Nightly / Puppet8 gem on Ruby 3.1 on Linux	41s
Nightly / Puppet7 gem on Ruby 2.7 on macOS	3m 39s
Released / Puppet7 gem on Ruby 2.7 on Linux	1m 15s
Nightly / Puppet8 gem on Ruby 3.1 on macOS	2m 30s
Nightly / Puppet7 gem on Ruby 2.7 on Windows	6m 20s
Released / Puppet8 gem on Ruby 3.1 on Linux	38s
Nightly / Puppet8 gem on Ruby 3.1 on Windows	3m 30s
Released / Puppet7 gem on Ruby 2.7 on macOS	2m 54s
Released / Puppet8 gem on Ruby 3.1 on macOS	1m 56s
Released / Puppet7 gem on Ruby 2.7 on Windows	4m 58s
Released / Puppet8 gem on Ruby 3.1 on Windows	5m 11s
	35m 8s

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