Merge #15461: [depends] update to Boost 1.70

2620e24b83 [depends] boost: update to 1.70 (Sjors Provoost)

Pull request description:

  Version [1.70](https://www.boost.org/users/history/version_1_70_0.html) is most recent.

  Versions needed for:
  * 1.66: #12557: fixes the single arm64 configuration ([06ee5b5](https://github.com/ruslo/hunter/commit/06ee5b54ef310b376cdaa7928f89b4995ceb2efc))

ACKs for commit 2620e2:

Tree-SHA512: 6e0174f1d92c2c24314c0689d4809e048914f8f42d17aa73799f5ee232169e0dd0ed71f5f973903c44c08309f2837c629c493f15e5c31ec6c7bd1daae5f3b25f

depends/packages/boost.mk

@@ -1,8 +1,8 @@
 package=boost
-$(package)_version=1_64_0
-$(package)_download_path=https://dl.bintray.com/boostorg/release/1.64.0/source/
+$(package)_version=1_70_0
+$(package)_download_path=https://dl.bintray.com/boostorg/release/1.70.0/source/
 $(package)_file_name=$(package)_$($(package)_version).tar.bz2
-$(package)_sha256_hash=7bcc5caace97baa948931d712ea5f37038dbb1c5d89b43ad4def4ed7cb683332
+$(package)_sha256_hash=430ae8354789de4fd19ee52f3b1f739e1fba576f0aded0897c3c2bc00fb38778
 
 define $(package)_set_vars
 $(package)_config_opts_release=variant=release