win32_deps_build.sh: change Boost URL

The Boost download URL is broken again [1], we'll switch to a
working mirror.

[1] boostorg/boost#842

Fixes: https://tracker.ceph.com/issues/63952

Signed-off-by: Lucian Petrut <lpetrut@cloudbasesolutions.com>
(cherry picked from commit 594d1e5)

win32_deps_build.sh

@@ -24,7 +24,7 @@ curlSrcDir="${depsSrcDir}/curl"
 curlDir="${depsToolsetDir}/curl"
 
 # For now, we'll keep the version number within the file path when not using git.
-boostUrl="https://boostorg.jfrog.io/artifactory/main/release/1.75.0/source/boost_1_75_0.tar.gz"
+boostUrl="https://archives.boost.io/release/1.75.0/source/boost_1_75_0.tar.gz"
 boostSrcDir="${depsSrcDir}/boost_1_75_0"
 boostDir="${depsToolsetDir}/boost"
 zlibDir="${depsToolsetDir}/zlib"