rb-bitset, rb-cache: checksum mismatch; master_sites needs to be updated

[ryandesign (Ryan Carsten Schmidt)]

​https://build.macports.org/builders/ports-14_arm64-builder/builds/15718/steps/install-port/logs/stdio

--->  Fetching distfiles for rb-bitset
DEBUG: Executing org.macports.fetch (rb-bitset)
--->  bitset-0.6.2.tar.gz does not exist in /Volumes/shared/macports/distfiles/ruby
--->  Attempting to fetch bitset-0.6.2.tar.gz from http://www.moonwolf.com/ruby/archive/

--->  Verifying checksums for rb-bitset
DEBUG: Executing org.macports.checksum (rb-bitset)
--->  Checksumming bitset-0.6.2.tar.gz
DEBUG: Calculated (md5) is 69f18c8b29b5ed24ded6f87c8e81fc3f
Error: Checksum (md5) mismatch for bitset-0.6.2.tar.gz
Portfile checksum: bitset-0.6.2.tar.gz md5 bc62a428fdf8db51d3a0c27e472431ca
Distfile checksum: bitset-0.6.2.tar.gz md5 69f18c8b29b5ed24ded6f87c8e81fc3f
***
The non-matching file appears to be HTML. See this page for possible reasons
for the checksum mismatch:
<https://trac.macports.org/wiki/MisbehavingServers>
***

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