[Python Build] Add python-dev to pulsar standalone docker image (#7871)

Motivation
Follow #7857 In the pulsar standalone Dockerfile, we also need to do the same operation

Modifications
Add python2.7-dev to pulsar standalone docker image
1 file changed
tree: 43df5d97b0c0ec36c694ecfacffcf67d6cd25286
  1. distribution/
  2. docker/
  3. tests/