[CI] build.yml: fix ERROR: Dangerous symbolic link path was ignored

add Command Line Switch -snld

-snld ->  allow extracting of denagerous symbolic links.

https://sourceforge.net/p/sevenzip/discussion/45798/thread/187ce54fb0/

Signed-off-by: simbit18 <simbit18@gmail.com>

Author: simbit18

.github/workflows/build.yml

@@ -368,7 +368,7 @@ jobs:
       - name: Extract sources
         run: |
           7z x sources.tar.gz -y
-          7z x sources.tar -y
+          7z x sources.tar -y -snld
 
       - name: Run Builds
         run: |