Last several days Strawberry Perl official download server has issues that lead to extremely slow download rates
(sometimes it takes more than 1 hour to download ~150MB).
This commit adds non-official mirror of Strawberry Perl to the list of available URLs.

Signed-off-by: Vitalii Koshura <lestat.de.lionkur@gmail.com>

* [python3] Update to Python 3.8.3.

[vtk] Update to Python 3.8 and fix improper Python3 artifact
specification.

* [python3] Fix static linking, broken in 121faf2.

* [hyperscan] Add missing build dependency (fixes CI on macOS).

* [tool-meson] Update to 0.54.2

- Release notes: https://mesonbuild.com/Release-notes-for-0-54-0.html
- Homepage added to CONTROL file

* Re-trigger CI test

Co-authored-by: JackBoosY <yuzaiyang@beyondsoft.com>

* [vcpkg_find_acquire_program] Add gn

* [GN] Add build system support

* [crashpad] Add new port

* [vcpkg/scripts] fix wrong paths variable on windows

* [vcpkg/scripts] search within vcpkg first and then ask the rest of the world

* [vcpkg/scripts] add second search path for ninja.
First is for vcpkg fetch ninja
Second is for vcpkg_find_acquire_program

* Update git to 2.26.1

* [vcpkg] Update git to 2.26.2

Co-authored-by: Cheney-Wang <v-xincwa@microsoft.com>

behavior before:
one script found meant another script could not be searched since the first one would simply be returned.