Merge bitcoin/bitcoin#30217: depends: Update Boost download link

ffbc173ca1 depends: Update Boost download link (Hennadii Stepanov)

Pull request description:

  The Boost has [migrated](https://github.com/boostorg/boost-tasks/pull/3) their downloads from from boostorg.jfrog.io to archives.boost.io.

  So do we.

  FWIW, the download speed at my location is much better :)

ACKs for top commit:
  maflcko:
    ACK ffbc173ca1

Tree-SHA512: 3f66675c390510ecfdacf2ac8af4a0a6bdbdf6fbfe01ed66fbe1b11bc9e935709e5492a754711cd788352c5853738fce755afd0c0480f36d0f8af31fcc108263

depends/packages/boost.mk

@@ -1,6 +1,6 @@
 package=boost
 $(package)_version=1.81.0
-$(package)_download_path=https://boostorg.jfrog.io/artifactory/main/release/$($(package)_version)/source/
+$(package)_download_path=https://archives.boost.io/release/$($(package)_version)/source/
 $(package)_file_name=boost_$(subst .,_,$($(package)_version)).tar.gz
 $(package)_sha256_hash=205666dea9f6a7cfed87c7a6dfbeb52a2c1b9de55712c9c1a87735d7181452b6