Make sure Purism cache all tarballs from merged https://github.com/linuxboot/heads/pull/2174

[tlaurion]

As title says: tarballs from musl-cross-make now under heads/packages need caching.

@JonathonHall-Purism?

[JonathonHall-Purism]

Done. Updated package mirror from commit 514ef67. New packages:

<f+++++++++ binutils-2.44.tar.gz
<f+++++++++ gcc-9.4.0.tar.xz
<f+++++++++ gmp-6.3.0.tar.xz
<f+++++++++ linux-headers-4.19.88-2.tar.xz
<f+++++++++ mpc-1.3.1.tar.gz
<f+++++++++ mpfr-4.2.2.tar.xz
<f+++++++++ musl-1.2.6.tar.gz
<f+++++++++ musl-cross-make-227df8b99103f9c59f6570babf892978e293082f.tar.gz

[tlaurion]

Done. Updated package mirror from commit 514ef67. New packages:

<f+++++++++ binutils-2.44.tar.gz
<f+++++++++ gcc-9.4.0.tar.xz
<f+++++++++ gmp-6.3.0.tar.xz
<f+++++++++ linux-headers-4.19.88-2.tar.xz
<f+++++++++ mpc-1.3.1.tar.gz
<f+++++++++ mpfr-4.2.2.tar.xz
<f+++++++++ musl-1.2.6.tar.gz
<f+++++++++ musl-cross-make-227df8b99103f9c59f6570babf892978e293082f.tar.gz

Thank you @JonathonHall-Purism

[tlaurion]

mmm, bin/seed_package_mirror.sh is a maintenance burden. Will check again, but insight here since CircleCi now had [seed] clauses, maybe we should have the seeding script reuse circleci config to determine programmatically what should be seeded instead of writing boards to build manually.