Update boost source code download link

Author: abitmore

.github/workflows/build-and-test.win.yml

@@ -30,7 +30,7 @@ jobs:
     - name: Download library sources
       if: steps.cache-libs.outputs.cache-hit != 'true'
       run: |
-        curl -LO https://dl.bintray.com/boostorg/release/${{ env.BOOST_DOTTED_VERSION }}/source/boost_${{ env.BOOST_VERSION }}.tar.bz2
+        curl -LO https://boostorg.jfrog.io/artifactory/main/release/${{ env.BOOST_DOTTED_VERSION }}/source/boost_${{ env.BOOST_VERSION }}.tar.bz2
         curl -LO https://curl.haxx.se/download/curl-${{ env.CURL_VERSION }}.tar.bz2
         curl -LO https://www.openssl.org/source/openssl-${{ env.OPENSSL_VERSION }}.tar.gz
         curl -LO https://zlib.net/zlib-${{ env.ZLIB_VERSION }}.tar.gz