[blacksmith] Bump version to 6.4.1-rc0 #503

Job	Run time
Puppet / Static validations	16s
Puppet / 8 (Ruby 3.2)	2m 39s
Puppet / 7 (Ruby 2.7)	3m 1s
Puppet / Puppet 8 - Debian 10	1m 43s
Puppet / Puppet 7 - Debian 10	1m 25s
Puppet / Puppet 8 - Debian 11	1m 31s
Puppet / Puppet 7 - Debian 11	1m 23s
Puppet / Distro Puppet - Debian 12	1m 37s
Puppet / Puppet 8 - Ubuntu 20.04	1m 54s
Puppet / Puppet 7 - Ubuntu 20.04	1m 28s
Puppet / Puppet 8 - Ubuntu 22.04	1m 24s
Puppet / Puppet 7 - Ubuntu 22.04	1m 25s
Puppet / Puppet 8 - CentOS 7	1m 37s
Puppet / Puppet 7 - CentOS 7	1m 59s
Puppet / Puppet 8 - CentOS 8	2m 10s
Puppet / Puppet 7 - CentOS 8	1m 46s
Puppet / Puppet 8 - CentOS 9	1m 53s
Puppet / Puppet 7 - CentOS 9	1m 33s
Puppet / Puppet 8 - AlmaLinux 8	1m 37s
Puppet / Puppet 7 - AlmaLinux 8	1m 25s
Puppet / Puppet 8 - AlmaLinux 9	1m 41s
Puppet / Puppet 7 - AlmaLinux 9	1m 26s
Puppet / Puppet 8 - Rocky 8	1m 48s
Puppet / Puppet 7 - Rocky 8	1m 39s
Puppet / Puppet 8 - Rocky 9	1m 37s
Puppet / Puppet 7 - Rocky 9	1m 39s
Puppet / Puppet 8 - OracleLinux 8	2m 29s
Puppet / Puppet 7 - OracleLinux 8	2m 15s
Puppet / Puppet 8 - OracleLinux 9	1m 52s
Puppet / Puppet 7 - OracleLinux 9	1m 37s
Puppet / Distro Puppet - Archlinux rolling	1m 3s
Puppet / Distro Puppet - Fedora 37	1m 49s
Puppet / Distro Puppet - Fedora 38	1m 44s
Puppet / Test suite	1s
	56m 26s

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