fix: standardize AWS provider configurations across examples

Resolves inconsistent AWS provider configurations by commenting out
hardcoded profile settings in all examples, ensuring CI/CD compatibility
while maintaining local development flexibility.

## Changes
- Updated 5 examples to use commented profile configuration
- Standardized format: `# profile = var.env["profile"]  # Commented out for CI compatibility`
- All 9 examples now have consistent provider configurations

## Issues Resolved
- Closes #142: Improve example AWS provider configurations for local development
- Addresses #143: Dependencies were already updated in previous comprehensive testing PR

## Benefits
- ✅ Works in CI without modification
- ✅ Supports local development with profiles (uncomment when needed)
- ✅ Consistent configuration across all examples
- ✅ Better developer experience

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

Author: lgallard

examples/selection_by_conditions/provider.tf

@@ -1,4 +1,4 @@
 provider "aws" {
-  region  = var.env["region"]
-  profile = var.env["profile"]
+  region = var.env["region"]
+  # profile = var.env["profile"]  # Commented out for CI compatibility
 }

examples/selection_by_tags/provider.tf

@@ -1,4 +1,4 @@
 provider "aws" {
-  region  = var.env["region"]
-  profile = var.env["profile"]
+  region = var.env["region"]
+  # profile = var.env["profile"]  # Commented out for CI compatibility
 }

examples/simple_plan/provider.tf

@@ -1,4 +1,4 @@
 provider "aws" {
-  region  = var.env["region"]
-  profile = var.env["profile"]
+  region = var.env["region"]
+  # profile = var.env["profile"]  # Commented out for CI compatibility
 }

examples/simple_plan_windows_vss_backup/provider.tf

@@ -1,4 +1,4 @@
 provider "aws" {
-  region  = var.env["region"]
-  profile = var.env["profile"]
+  region = var.env["region"]
+  # profile = var.env["profile"]  # Commented out for CI compatibility
 }

examples/simple_plan_with_report/provider.tf

@@ -1,4 +1,4 @@
 provider "aws" {
-  region  = var.env["region"]
-  profile = var.env["profile"]
+  region = var.env["region"]
+  # profile = var.env["profile"]  # Commented out for CI compatibility
 }