docs(devcontainer): add trivy and its VSCode Extension

[ashnashahgrover]

Primary Changes

1. updated trivy version in the .devcontainer file and included trivy vs-code extension

Changes required to incorporate 1)
3) included trivy vs-code extension in the .vscode/extensions.json file

Fixes https://github.com/hyperledger/cacti/issues/2650

Signed-off-by: ashnashahgrover as19@williams.edu

Pull Request Requirements

• Rebased onto upstream/main branch and squashed into single commit to help maintainers review it more efficient and to avoid spaghetti git commit graphs that obfuscate which commit did exactly what change, when and, why.
• Have git sign off at the end of commit message to avoid being marked red. You can add -s flag when using git commit command. You may refer to this link for more information.
• Follow the Commit Linting specification. You may refer to this link for more information.

Character Limit

• Pull Request Title and Commit Subject must not exceed 72 characters (including spaces and special characters).
• Commit Message per line must not exceed 80 characters (including spaces and special characters).

A Must Read for Beginners
For rebasing and squashing, here's a must read guide for beginners.

[petermetz]

@ashnashahgrover LGTM with comments

[jagpreetsinghsasan]

LGTM @ashnashahgrover (You still have to update the commit message, some typos and point 4 is not valid anymore)

[petermetz]

@ashnashahgrover

[petermetz]

@ashnashahgrover Are you still working on this? If not, we can close it down and pick it back up later. I'm trying to keep the PR queue fresh.

[jagpreetsinghsasan]

@ashnashahgrover please read the PR message again (and similarly, commit message)

[petermetz]

@ashnashahgrover Seems like a rebase gone wrong type of situation. Please remove the non-relevant lines from the diff.

[ashnashahgrover]

@ashnashahgrover Seems like a rebase gone wrong type of situation. Please remove the non-relevant lines from the diff.

@petermetz I deleted the non-relevant lines, please let me know if you still see any issues.

[petermetz]

@ashnashahgrover The diff still has parts that looks like parts of a different commit / older version of the file:

[RafaelAPB]

@ashnashahgrover are you still working on this? If yes please rebase with latest main and address the other comments please.

[ashnashahgrover]

@ashnashahgrover are you still working on this? If yes please rebase with latest main and address the other comments please.

@RafaelAPB, all changes have been addressed can you re review?

[RafaelAPB]

LGTM