Update python2, python3, perl, aria2, ninja, ruby, 7z

[YenForYang]

No description provided.

[ras0219-msft]

This may require also changing scripts\vcpkgTools.xml.

https://github.com/microsoft/vcpkg/blob/d962dc7d651b563bed089f4bf9056003ebb7fe1c/scripts/vcpkgTools.xml

[Rastaban]

Running full rebuild tests at https://dev.azure.com/vcpkg/public/_build/results?buildId=4345
Because it is rebuilding everything I expect multiple "flaky ports" to fail. I will comb through the results and report back anything that looks like an actual failure.

[skychef]

This may require also changing scripts\vcpkgTools.xml.

*requires

No bump to win_flex_bison-2.5.18.zip?

[Rastaban]

There are a few ports that started failing due to new (and completely valid) warning/errors from ninja. I have been resolving them in separate PRs.

[Rastaban]

All issues I found have now been addressed in other PRs, this is passing the full rebuild test.

[MVoz]

There are a few ports that started failing due to new (and completely valid) warning/errors from ninja. I have been resolving them in separate PRs.

ninja.exe -w list

default ninja.exe -w dupbuild=err

ninja.exe -w dupbuild=warn all ok

)))
ninja -t urtle