fix: pin apt-get versions

Dockerfile

@@ -2,19 +2,18 @@ FROM ruby:2.7.2-slim
 
 RUN apt-get update \
     && apt-get install -y --no-install-recommends \
-        cmake \
-        pkg-config \
-        default-libmysqlclient-dev \
-        nodejs \
-        curl \
-        git \
-        ruby-dev \
-        telnet \
-        nano \
-        build-essential \
-        cmake pkg-config \
-        libpq-dev \
-        shared-mime-info \
+        cmake=3.13.4-1 \
+        pkg-config=0.29-6 \
+        default-libmysqlclient-dev=1.0.* \
+        nodejs=10.24.* \
+        curl=7.64.* \
+        git=1:* \
+        ruby-dev=1:2.5.* \
+        telnet=0.17-* \
+        nano=3.2-* \
+        build-essential=12.* \
+        libpq-dev=11.* \
+        shared-mime-info=1.10-1 \
     && apt-get clean \
     && rm -rf /var/lib/apt/lists/*