[test] fix socat version to 1.7.4.4 (#2706)

This commit changes the installation of socat from using 'apt' to
manual installation.

We found the latest socat version 1.8.0.3 has an issue when running
with OTBR docker. To avoid the error caused by version and facilitate
local development, the commit provides a script to install socat of
version `1.7.4.4` and replaces the installation in CI and scripts..

BTW, the installation in `install_openthread_binraries` is unnecessary
because `install_common_dependencies` will be done anyway.

.github/workflows/border_router.yml

@@ -184,8 +184,9 @@ jobs:
       if: ${{ success() && steps.check_cache_result.outputs.cache-hit != 'true' }}
       run: |
         sudo rm /etc/apt/sources.list.d/* && sudo apt-get update
-        sudo apt-get --no-install-recommends install -y python3-setuptools python3-wheel ninja-build socat nodejs npm
+        sudo apt-get --no-install-recommends install -y python3-setuptools python3-wheel ninja-build nodejs npm
         python3 -m pip install -r third_party/openthread/repo/tests/scripts/thread-cert/requirements.txt
+        sudo bash third_party/openthread/repo/script/install_socat
     - name: Build OpenThread
       if: ${{ success() && steps.check_cache_result.outputs.cache-hit != 'true' }}
       run: |

tests/scripts/bootstrap.sh

@@ -65,8 +65,7 @@ install_common_dependencies()
         coreutils \
         git \
         libprotobuf-dev \
-        protobuf-compiler \
-        socat
+        protobuf-compiler
 }
 
 install_openthread_binraries()
@@ -79,8 +78,6 @@ install_openthread_binraries()
     cmake .. -GNinja -DOT_PLATFORM=simulation -DOT_FULL_LOGS=1 -DOT_COMMISSIONER=ON -DOT_JOINER=ON
     ninja
     sudo ninja install
-
-    sudo apt-get install --no-install-recommends -y socat
 }
 
 configure_network()
@@ -97,18 +94,21 @@ case "$(uname)" in
         install_common_dependencies
 
         if [ "$BUILD_TARGET" == script-check ] || [ "$BUILD_TARGET" == docker-check ]; then
+            sudo bash third_party/openthread/repo/script/install_socat
             install_openthread_binraries
             configure_network
             exit 0
         fi
 
         if [ "$BUILD_TARGET" == check ] || [ "$BUILD_TARGET" == meshcop ]; then
+            sudo bash third_party/openthread/repo/script/install_socat
             install_openthread_binraries
             sudo apt-get install --no-install-recommends -y avahi-daemon avahi-utils
             configure_network
         fi
 
         if [ "$BUILD_TARGET" == ncp_mode ]; then
+            sudo bash third_party/openthread/repo/script/install_socat
             sudo apt-get install --no-install-recommends -y avahi-daemon avahi-utils
         fi