Add OpenTofu setup and configuration for AWS infrastructure

- Create action for setting up OpenTofu environment
- Update Terraform workflow to use OpenTofu for infrastructure management
- Modify backend configuration for S3 with new bucket and region
- Add S3 bucket resources with lifecycle configuration
- Update local variables and remove deprecated files
- Include required Python packages for OpenTofu

terraform/aws-iac/buckets.tf

@@ -0,0 +1,51 @@
+resource "aws_s3_bucket" "infra_bucket" {
+  bucket        = "a13labs.infra.eu"
+  force_destroy = true
+}
+
+resource "aws_s3_bucket_public_access_block" "infra_bucket" {
+  bucket = aws_s3_bucket.infra_bucket.id
+
+  block_public_acls       = true
+  ignore_public_acls      = true
+  block_public_policy     = true
+  restrict_public_buckets = true
+}
+
+resource "aws_s3_bucket_versioning" "infra_bucket" {
+  bucket = aws_s3_bucket.infra_bucket.id
+
+  versioning_configuration {
+    status = "Enabled"
+  }
+}
+
+resource "aws_s3_bucket_lifecycle_configuration" "infra_bucket" {
+  bucket = aws_s3_bucket.infra_bucket.id
+
+  rule {
+    id     = "clenaup"
+    status = "Enabled"
+    filter {
+      prefix = "/"
+    }
+    expiration {
+      days = 30
+    }
+  }
+}
+
+import {
+  id = "a13labs.infra.eu"
+  to = aws_s3_bucket.infra_bucket
+}
+
+import {
+  id = "a13labs.infra.eu"
+  to = aws_s3_bucket_public_access_block.infra_bucket
+}
+
+import {
+  id = "a13labs.infra.eu"
+  to = aws_s3_bucket_versioning.infra_bucket
+}