bintray URLs (e.g. Boost) will become invalid on May, 1st -> Use alternate URLs

[Flamefire]

There is an announcement from JFrog/Bintray:

We are and continue to be a community-focused company, and in the spirit of transparency we’re giving you advance notice that as of May 2021, we will be sunsetting Bintray.
[...]
Repositories Hosted on Bintray
Your repositories for module types including Docker, Maven (Java), Npm, NuGet, RPM, Vagrant, and Generic will need to be migrated off of Bintray service on or before May 1st to avoid any disruption in service.
Conan OSS Users
Conan packages for C/C++ have been migrated to ConanCenter.
Migrate to the Free Subscription of Artifactory
JFrog has a new free subscription tier that gives you the ability to manage and distribute artifacts with automated security scanning. You can sign up for a free subscription and start migrating your Bintray artifacts. Unlike Bintray, this service also offers Continuous Integration and is suitable for hosting CI artifacts, such as Snapshot builds.

Hence the Boost download URLs should be changed/added to e.g. https://sourceforge.net/projects/boost/files/boost/${VERSION}/${FILE_NAME}.tar.bz2/download

[branfosj]

Use of bintray in ecs:

Boost (#12743) and Boost.Python (#12744):

Boost-1.71.0-gompi-2019b.eb:source_urls = ['https://dl.bintray.com/boostorg/release/%(version)s/source/']
Boost-1.71.0-gompic-2019b.eb:source_urls = ['https://dl.bintray.com/boostorg/release/%(version)s/source/']
Boost-1.71.0-iimpi-2019b.eb:source_urls = ['https://dl.bintray.com/boostorg/release/%(version)s/source/']
Boost-1.71.0-iimpic-2019b.eb:source_urls = ['https://dl.bintray.com/boostorg/release/%(version)s/source/']
Boost-1.72.0-GCCcore-9.3.0-no_mpi.eb:source_urls = ['https://dl.bintray.com/boostorg/release/%(version)s/source/']
Boost-1.72.0-gompi-2020a.eb:source_urls = ['https://dl.bintray.com/boostorg/release/%(version)s/source/']
Boost-1.72.0-iimpi-2020a.eb:source_urls = ['https://dl.bintray.com/boostorg/release/%(version)s/source/']
Boost-1.74.0-GCC-10.2.0.eb:source_urls = ['https://dl.bintray.com/boostorg/release/%(version)s/source/']
Boost-1.74.0-iccifort-2020.4.304.eb:source_urls = ['https://dl.bintray.com/boostorg/release/%(version)s/source/']
Boost.Python-1.71.0-gompi-2019b.eb:source_urls = ['https://dl.bintray.com/boostorg/release/%(version)s/source/']
Boost.Python-1.71.0-gompic-2019b.eb:source_urls = ['https://dl.bintray.com/boostorg/release/%(version)s/source/']
Boost.Python-1.71.0-iimpi-2019b.eb:source_urls = ['https://dl.bintray.com/boostorg/release/%(version)s/source/']
Boost.Python-1.71.0-iimpic-2019b.eb:source_urls = ['https://dl.bintray.com/boostorg/release/%(version)s/source/']
Boost.Python-1.72.0-gompi-2020a.eb:source_urls = ['https://dl.bintray.com/boostorg/release/%(version)s/source/']
Boost.Python-1.72.0-iimpi-2020a.eb:source_urls = ['https://dl.bintray.com/boostorg/release/%(version)s/source/']
Boost.Python-1.74.0-GCC-10.2.0.eb:source_urls = ['https://dl.bintray.com/boostorg/release/%(version)s/source/']

DB:

DB-18.1.25-GCCcore-7.3.0.eb:source_urls = ['https://bintray.com/homebrew/mirror/download_file?file_path=']
DB-18.1.32-GCCcore-8.2.0.eb:source_urls = ['https://bintray.com/homebrew/mirror/download_file?file_path=']
DB-18.1.32-GCCcore-8.3.0.eb:source_urls = ['https://bintray.com/homebrew/mirror/download_file?file_path=']
DB-18.1.32-GCCcore-9.3.0.eb:source_urls = ['https://bintray.com/homebrew/mirror/download_file?file_path=']
DB-18.1.40-GCCcore-10.2.0.eb:source_urls = ['https://bintray.com/homebrew/mirror/download_file?file_path=']
DB-18.1.40-GCCcore-10.3.0.eb:source_urls = ['https://bintray.com/homebrew/mirror/download_file?file_path=']

FDS:

FDS-6.0.1-no-OFED.eb:# download .sh from https://bintray.com/nist-fire-research/releases/FDS-SMV/6.0.1/view/files to create tarball

Groovy (#12652):

Groovy-2.5.9-Java-11.eb:source_urls = ['https://dl.bintray.com/groovy/maven/']

Transrate:

Transrate-1.0.3.eb:source_urls = ['https://bintray.com/artifact/download/blahah/generic']

[Micket]

I complete forgot about this when i merged DB. So, add DB-18.1.40-GCCcore-10.3.0.eb to the list as well.

[branfosj]

I've added the extra DB to the list and I also added a Boost.Python that has been merged since I generated it.

[boegel]

Transrate looks like a lost cause, cfr. blahah/transrate#242

FDS 6.0.1 is ancient, and the bintray URL is only in a comment, so that's a "won't fix" imho.

Fix for latest DB (1.18.40) in #12974, I don't see a way out currently for older versions?