Implementing Caesar Cipher Encryption (Challenge)

# Introduction

In this challenge, we will be implementing the Caesar cipher encryption technique. The Caesar cipher is a simple substitution method that replaces each English character in a message with a character shifted a certain number of positions to the right in the alphabet sequence. The objective is to complete the `caesar_encryption(text)` function in the `caesar_cipher.py` file, which takes a string as input and shifts every English character 2 positions to the right while maintaining the case of the characters.