Latest vulnerability fixes

[MukuFlash03]

Summary

1 CRITICAL - flask
7 HIGH - [cryptography, libgnutls30 (2), bash], [pillow], [ecdsa (2)]

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1. Flask-caching
   Flask-caching has been a previously known issue, observed here before:

• Apr 2023
• Dec 2023

2. First set - cryptography, libgnutls30 (2), bash

Details about how the first four vulnerabilties are handled present in this PR for e-mission-server repo.

3. Second set - pillow

• Fixed by updating package version manually in viz_scripts/docker/environment36.dashboard.additions.yml.

4. ecdsa (2)
   PENDING

• No remediation available as yet.
• Additionally, AWS Inspector says its both SUPPRESSED and ACTIVE, so not sure.

Will try to find way to handle this if possible, else can try merging to fix other vulnerabilities.

[shankari]

1. We do not currently have the server changes automatically flow to the dashboards. You need to bump up the server image after it is built
2. We are removing pillow here Removes pillow from requirements.txt #107 so we should just clean up that PR and merge it instead

[MukuFlash03]

Added a new PR that only updates the docker image tag to build from e-mission-server latest image.
The pillow change would no longer be required once its related PR is merged.

[shankari]

Closing this since it is superceded by #116, which has been merged