Change from v11 to v10

Author: Bill-hbrhbr

tools/scripts/lib_install/linux/ubuntu-focal/install-prebuilt-packages.sh

@@ -9,23 +9,23 @@ set -u
 apt-get update
 DEBIAN_FRONTEND=noninteractive apt-get install --no-install-recommends -y \
     g++ \
-    g++-11 \
+    g++-10 \
     gcc \
-    gcc-11
+    gcc-10
 
 # Add alternatives for cpp-10, gcc-10, and g++-10
 # NOTE: We use a low priority to avoid affecting the prioritization of any existing alternatives
 # on the user's system.
-update-alternatives --install /usr/bin/cc cc /usr/bin/gcc-11 0 \
+update-alternatives --install /usr/bin/cc cc /usr/bin/gcc-10 0 \
   --slave /usr/share/man/man1/cc.1.gz cc.1.gz /usr/share/man/man1/gcc.1.gz
-update-alternatives --install /usr/bin/c++ c++ /usr/bin/g++-11 0 \
+update-alternatives --install /usr/bin/c++ c++ /usr/bin/g++-10 0 \
   --slave /usr/share/man/man1/c++.1.gz c++.1.gz /usr/share/man/man1/g++.1.gz
-update-alternatives --install /lib/cpp cpp /usr/bin/cpp-11 0
+update-alternatives --install /lib/cpp cpp /usr/bin/cpp-10 0
 
 update-alternatives --config cc
 
-update-alternatives --set cc /usr/bin/gcc-11
-update-alternatives --set c++ /usr/bin/g++-11
-update-alternatives --set cpp /usr/bin/cpp-11
+update-alternatives --set cc /usr/bin/gcc-10
+update-alternatives --set c++ /usr/bin/g++-10
+update-alternatives --set cpp /usr/bin/cpp-10
 
 update-alternatives --config cc