bintray being "sunsetted" so downloads fail.

[terjekv]

From #12573 we see the first such issue, but more will arise: https://jfrog.com/blog/into-the-sunset-bintray-jcenter-gocenter-and-chartcenter/

This affects the following EasyConfigs:

$ grep -r bintray *
b/Boost/Boost-1.71.0-iimpic-2019b.eb:source_urls = ['https://dl.bintray.com/boostorg/release/%(version)s/source/']
b/Boost/Boost-1.72.0-iimpi-2020a.eb:source_urls = ['https://dl.bintray.com/boostorg/release/%(version)s/source/']
b/Boost/Boost-1.71.0-iimpi-2019b.eb:source_urls = ['https://dl.bintray.com/boostorg/release/%(version)s/source/']
b/Boost/Boost-1.74.0-iccifort-2020.4.304.eb:source_urls = ['https://dl.bintray.com/boostorg/release/%(version)s/source/']
b/Boost/Boost-1.71.0-gompic-2019b.eb:source_urls = ['https://dl.bintray.com/boostorg/release/%(version)s/source/']
b/Boost/Boost-1.72.0-GCCcore-9.3.0-no_mpi.eb:source_urls = ['https://dl.bintray.com/boostorg/release/%(version)s/source/']
b/Boost/Boost-1.71.0-gompi-2019b.eb:source_urls = ['https://dl.bintray.com/boostorg/release/%(version)s/source/']
b/Boost/Boost-1.72.0-gompi-2020a.eb:source_urls = ['https://dl.bintray.com/boostorg/release/%(version)s/source/']
b/Boost/Boost-1.74.0-GCC-10.2.0.eb:source_urls = ['https://dl.bintray.com/boostorg/release/%(version)s/source/']
b/Boost.Python/Boost.Python-1.71.0-gompic-2019b.eb:source_urls = ['https://dl.bintray.com/boostorg/release/%(version)s/source/']
b/Boost.Python/Boost.Python-1.71.0-iimpic-2019b.eb:source_urls = ['https://dl.bintray.com/boostorg/release/%(version)s/source/']
b/Boost.Python/Boost.Python-1.71.0-iimpi-2019b.eb:source_urls = ['https://dl.bintray.com/boostorg/release/%(version)s/source/']
b/Boost.Python/Boost.Python-1.72.0-iimpi-2020a.eb:source_urls = ['https://dl.bintray.com/boostorg/release/%(version)s/source/']
b/Boost.Python/Boost.Python-1.72.0-gompi-2020a.eb:source_urls = ['https://dl.bintray.com/boostorg/release/%(version)s/source/']
b/Boost.Python/Boost.Python-1.71.0-gompi-2019b.eb:source_urls = ['https://dl.bintray.com/boostorg/release/%(version)s/source/']
b/Boost.Python/Boost.Python-1.74.0-GCC-10.2.0.eb:source_urls = ['https://dl.bintray.com/boostorg/release/%(version)s/source/']
d/DB/DB-18.1.32-GCCcore-8.3.0.eb:source_urls = ['https://bintray.com/homebrew/mirror/download_file?file_path=']
d/DB/DB-18.1.32-GCCcore-8.2.0.eb:source_urls = ['https://bintray.com/homebrew/mirror/download_file?file_path=']
d/DB/DB-18.1.40-GCCcore-10.2.0.eb:source_urls = ['https://bintray.com/homebrew/mirror/download_file?file_path=']
d/DB/DB-18.1.25-GCCcore-7.3.0.eb:source_urls = ['https://bintray.com/homebrew/mirror/download_file?file_path=']
d/DB/DB-18.1.32-GCCcore-9.3.0.eb:source_urls = ['https://bintray.com/homebrew/mirror/download_file?file_path=']
f/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
g/Groovy/Groovy-2.5.9-Java-11.eb:source_urls = ['https://dl.bintray.com/groovy/maven/']
t/Transrate/Transrate-1.0.3.eb:source_urls = ['https://bintray.com/artifact/download/blahah/generic']

[terjekv]

Duh. #12099