* Bundle rbs-3.10.0.pre.1

* Update rbs gem entry with commit hash

Updated rbs entry to include commit hash.

* Fix rbs entry in bundled_gems

* Update rbs gem to version 3.10.0.pre.2

Updated rbs gem version from 3.10.0.pre.1 to 3.10.0.pre.2.

* Update bundled bigdecimal to v4.0.1

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Co-authored-by: Soutaro Matsumoto <matsumoto@soutaro.com>

* Update bigdecimal spec

* Update bundled bigdecimal to 3.3.1

What a "word" is when talking about sizes is confusing because it's a
highly overloaded term. Intel, Microsoft, and GDB are just a few vendors
that have their own definition of what a "word" is. Specs that used the
"wordsize" guard actually were mostly testing for the size of the C
`long` fundamental type, so rename the guard for clarity.

Also, get the size of `long` directly from RbConfig instead of guessing
using Integer#size. Integer#size is not guaranteed to have anything to
do with the `long` type.