feat: added caching to aws region query

aws-lb.py

@@ -10,13 +10,9 @@ import boto3
 import concurrent.futures
 from openpyxl import load_workbook
 from openpyxl.worksheet.worksheet import Worksheet
+import projectlib.aws
 
 
-def getRegions(all_regions=False) -> list[str]:
-    ec2 = boto3.client('ec2', region_name='us-east-1')
-    response = ec2.describe_regions(AllRegions=all_regions)
-    return [region['RegionName'] for region in response['Regions']]
-
 def getResources(region_name: str) -> list[list[str | int]]:
     return_data = []
     client = boto3.client('elbv2', region_name=region_name)
@@ -33,7 +29,7 @@ def main() -> None:
 
     ws.append(["LoadBalancerName", "Scheme", "Type", "Region"])
     with concurrent.futures.ThreadPoolExecutor(max_workers=8) as executor:
-        results = executor.map(getResources, getRegions())
+        results = executor.map(getResources, projectlib.aws.getRegions())
         for region_rows in results:
             # append to worksheet only if resoruces are found in the region
             if region_rows: