Use $HOME variable to find Conda binaries instead of hard-coded path (#3743)

Summary:
Pull Request resolved: #3743

This fixes containerized builds that will be needed for ROCm.

Reviewed By: junjieqi

Differential Revision: D61007764

fbshipit-source-id: 11fa8dc3641a85d4c220832bedf0f6d62ae49426

Author: ramilbakhshyiev

.github/actions/build_cmake/action.yml

@@ -107,7 +107,7 @@ runs:
         sudo ln -s /lib/x86_64-linux-gnu/libc.so.6 /lib64/libc.so.6
         sudo ln -s /lib/x86_64-linux-gnu/libc_nonshared.a /usr/lib64/libc_nonshared.a
         sudo ln -s /usr/lib/x86_64-linux-gnu/libpthread.so.0 /lib64/libpthread.so.0
-        sudo ln -s /home/runner/miniconda3/x86_64-conda-linux-gnu/sysroot/usr/lib64/libpthread_nonshared.a /usr/lib64/libpthread_nonshared.a
+        sudo ln -s $HOME/miniconda3/x86_64-conda-linux-gnu/sysroot/usr/lib64/libpthread_nonshared.a /usr/lib64/libpthread_nonshared.a
     - name: Build all targets
       shell: bash
       run: |