[Enh] Updating Group dependency for GitHub Actions and Cargo

[nakul-py]

What does this PR do?

Updating the .github/dependabot.yml file to group dependency updates for:

• GitHub Actions: All updates will now be grouped under a single PR using the all-actions group.
• Cargo: Updates will be batched into a single PR using the all-cargo group.

Which issue does this PR Fixes?

• Fixes Modify dependabot settings to suggest multiple changes together #1622

[sharkAndshark]

Thx!! @nakul-py Seems we must made separated groups. See the doc

You cannot apply a single grouping set of rules to both version updates and security updates. Instead, if you want to group both version updates and security updates using the same criteria, you must define two, separately named, grouping sets of rules. To do this, you can copy the group configuration block for the ecosystem and directory, and name each set of rules differently.

[CommanderStorm]

Seems we must made separated groups

So stupid that we need to do so.
Otherwise looks good to me