chore: remove Node.js 18 and mongodb driver 4.4 support

BREAKING CHANGES: remove Node.js 18 and mongodb driver 4.4 support as they
reached EOL.

Signed-off-by: dhmlau <[email protected]>

Author: dhmlau

.github/workflows/continuous-integration.yaml

@@ -21,9 +21,8 @@ jobs:
     timeout-minutes: 15
     strategy:
       matrix:
-        node-version: [18, 20, 22]
+        node-version: [20, 22, 24]
         mongodb-version:
-          - '4.4'
           - '5.0'
           - '6.0'
           - '7.0'