YARN-10367. Failed to get nodejs 10.21.0 when building docker image (#2171)

(cherry picked from commit e277d338da2675262b4d6985e08c78e408b927a3)

dev-support/docker/Dockerfile

@@ -177,10 +177,11 @@ RUN pip2 install \
 RUN pip2 install python-dateutil==2.7.3
 
 ###
-# Install node.js 10.21.0 for web UI framework (4.2.6 ships with Xenial)
+# Install node.js 10.x for web UI framework (4.2.6 ships with Xenial)
 ###
+# hadolint ignore=DL3008
 RUN curl -L -s -S https://deb.nodesource.com/setup_10.x | bash - \
-    && apt-get install -y --no-install-recommends nodejs=10.21.0-1nodesource1 \
+    && apt-get install -y --no-install-recommends nodejs \
     && apt-get clean \
     && rm -rf /var/lib/apt/lists/* \
     && npm install -g bower@1.8.8

dev-support/docker/Dockerfile_aarch64

@@ -184,10 +184,11 @@ RUN pip2 install \
 RUN pip2 install python-dateutil==2.7.3
 
 ###
-# Install node.js 10.21.0 for web UI framework (4.2.6 ships with Xenial)
+# Install node.js 10.x for web UI framework (4.2.6 ships with Xenial)
 ###
+# hadolint ignore=DL3008
 RUN curl -L -s -S https://deb.nodesource.com/setup_10.x | bash - \
-    && apt-get install -y --no-install-recommends nodejs=10.21.0-1nodesource1 \
+    && apt-get install -y --no-install-recommends nodejs \
     && apt-get clean \
     && rm -rf /var/lib/apt/lists/* \
     && npm install -g bower@1.8.8