feat: use environment variables by default in module config

[sinedied]

PR Checklist

Please check if your PR fulfills the following requirements:

• [x] The commit message follows our guidelines: https://github.com/nestjs/nest/blob/master/CONTRIBUTING.md
• [x] Tests for the changes have been added (for bug fixes / features)
• [x] Docs have been added / updated (for bug fixes / features)

PR Type

What kind of change does this PR introduce?

Use a default config to simplify module configuration.

[ ] Bugfix
[x] Feature
[ ] Code style update (formatting, local variables)
[ ] Refactoring (no functional changes, no api changes)
[ ] Build related changes
[ ] CI related changes
[ ] Other... Please describe:

What is the current behavior?

Before:

    AzureStorageModule.withConfig({
      sasKey: process.env['AZURE_STORAGE_SAS_KEY'],
      accountName: process.env['AZURE_STORAGE_ACCOUNT'],
      containerName: 'nest-demo-container',
    }),

Issue Number: N/A

What is the new behavior?

After (even containerName could be omitted, but you usually want to customize it anyway):

    AzureStorageModule.withConfig({
      containerName: 'nest-demo-container',
    }),

Does this PR introduce a breaking change?

[ ] Yes
[x] No

Other information

Also updated deps for vulnerabilities & fixed prettier formatting