check yarn version as well.

Author: Kaniska244

test/node/install_node_debian_bookworm.sh

@@ -11,6 +11,7 @@ YARN_VERSION="4.9.4"
 # Definition specific tests
 check "version" node  --version
 check "pnpm" pnpm -v
+check "yarn" yarn --version
 
 # Corepack provides shims for package managers like yarn. The first time yarn is invoked via the "yarn"
 # command, corepack will interactively request permission to download the yarn binary. To

test/node/install_node_debian_trixie.sh

@@ -11,11 +11,13 @@ YARN_VERSION="4.9.4"
 # Definition specific tests
 check "version" node  --version
 check "pnpm" pnpm -v
+check "yarn" yarn --version
 
 # Corepack provides shims for package managers like yarn. The first time yarn is invoked via the "yarn"
 # command, corepack will interactively request permission to download the yarn binary. To
 # avoid this interactive mode and download the binary automatically, we explicitly call "corepack use yarn"
 # instead (doesn't require user input). Once that command completes, "yarn" can be used in a non-interactive mode.
+
 check "yarn shim location" bash -c ". /usr/local/share/nvm/nvm.sh && type yarn &> /dev/null"
 check "download yarn" bash -c ". /usr/local/share/nvm/nvm.sh && corepack use yarn@${YARN_VERSION}"
 check "yarn version" bash -c ". /usr/local/share/nvm/nvm.sh && yarn --version | grep ${YARN_VERSION}"