[CI] Docker files are updated (git)

Author: dmitry-lipetsk

Dockerfile--std-all.tmpl

@@ -12,6 +12,9 @@ ENV PYTHON_VERSION=3
 # --------------------------------------------- final
 FROM base2_with_python-${PYTHON_VERSION} as final
 
+# it is required for getting external packages
+RUN apk add --no-cache git
+
 #RUN apk add --no-cache mc
 
 # Full version of "ps" command

Dockerfile--std.tmpl

@@ -12,6 +12,9 @@ ENV PYTHON_VERSION=3
 # --------------------------------------------- final
 FROM base2_with_python-${PYTHON_VERSION} as final
 
+# it is required for getting external packages
+RUN apk add --no-cache git
+
 ENV LANG=C.UTF-8
 
 ADD . /pg/testgres

Dockerfile--ubuntu_24_04.tmpl

@@ -47,6 +47,9 @@ ENV PYTHON_VERSION=3
 # --------------------------------------------- final
 FROM base2_with_python-${PYTHON_VERSION} as final
 
+# it is required for getting external packages
+RUN apk add --no-cache git
+
 ADD . /pg/testgres
 WORKDIR /pg/testgres
 RUN chown -R postgres /pg