migrate inquirer usage to v12 syntax

[harshithad0703]

Changes

1. Upgraded inquirer from v8.2.7 to v12.11.1 (5 packages)

• Packages: contentstack, contentstack-utilities, contentstack-bootstrap, contentstack-clone, contentstack-seed
• Maintains Node.js 14+ runtime compatibility
• Removes dependency on unmaintained inquirer-checkbox-plus-prompt
• Fixed deprecated BottomBar API usage in contentstack-clone
• Updated type imports for inquirer v12 compatibility in contentstack-utilities

2. Migrated contentstack-export-to-csv to @inquirer/prompts v8.2.1

• Complete rewrite of interactive prompts using modern @inquirer/prompts ecosystem
• Built-in search functionality (type to filter, space to select) replaces plugin-based search
• Removed unmaintained dependencies: inquirer-checkbox-plus-prompt, inquirer-autocomplete-prompt
• Updated Node requirement from unlimited to >=18.0.0

3. Upgraded TypeScript from v4.9.5 to v5.0.0 (17 packages)

• Required to support inquirer v12's const type parameter syntax
• Enables modern TypeScript features across the codebase
• No impact on runtime compatibility

4. Updated @types/node from v14 to v18 (6 packages)

• Required for TypeScript compilation with inquirer v12 type definitions

5. Plugins that use the inquirer table prompt

The table prompt is implemented in @contentstack/cli-utilities (inquirer-table-prompt.ts) and is used in one plugin only.
Plugin: @contentstack/cli-cm-branches (Branches)
Command: csdx cm:branches:merge
Package: packages/contentstack-branches
Usage: packages/contentstack-branches/src/utils/interactive.ts (two table prompts)

[github-actions]

🔒 Security Scan Results

ℹ️ Note: Only vulnerabilities with available fixes (upgrades or patches) are counted toward thresholds.

Check Type	Count (with fixes)	Without fixes	Threshold	Result
🔴 Critical Severity	0	0	10	✅ Passed
🟠 High Severity	2	1	25	✅ Passed
🟡 Medium Severity	0	0	500	✅ Passed
🔵 Low Severity	0	0	1000	✅ Passed

⏱️ SLA Breach Summary

✅ No SLA breaches detected. All vulnerabilities are within acceptable time thresholds.

Severity	Breaches (with fixes)	Breaches (no fixes)	SLA Threshold (with/no fixes)	Status
🔴 Critical	0	0	15 / 30 days	✅ Passed
🟠 High	0	0	30 / 120 days	✅ Passed
🟡 Medium	0	0	90 / 365 days	✅ Passed
🔵 Low	0	0	180 / 365 days	✅ Passed

ℹ️ Vulnerabilities Without Available Fixes (Informational Only)

The following vulnerabilities were detected but do not have fixes available (no upgrade or patch). These are excluded from failure thresholds:

• Critical without fixes: 0
• High without fixes: 1
• Medium without fixes: 0
• Low without fixes: 0

✅ BUILD PASSED - All security checks passed