docs: update SECURITY.md (#2146)

Author: snitin315

SECURITY.md

@@ -8,10 +8,10 @@ webpack CLI is currently supporting webpack v4 and webpack v5. Security fixes ar
 
 | webpack version | webpack-cli version           | Supported          |
 | --------------- | ----------------------------- | ------------------ |
-| >= 4.20.x       | ^3.1.2                        | :white_check_mark: |
-| <= 4.19.x       | ^3.1.1                        | :white_check_mark: |
-| 5.x.0           | ^3.1.2                        | :white_check_mark: |
-| 5.0.x           | ^3.1.2                        | :white_check_mark: |
+| >= 4.20.x       | ^4.2.0                        | :white_check_mark: |
+| <= 4.19.x       | ^4.2.0                        | :white_check_mark: |
+| 5.x.0           | ^4.2.0                        | :white_check_mark: |
+| 5.0.x           | ^4.2.0                        | :white_check_mark: |
 | < 4.x.x         | (CLI included in webpack < 4) | :x:                |
 
 **Note: Using webpack < 4 with webpack CLI is not required as CLI was [included](https://github.com/webpack/webpack/commit/4b0332d3909eea8115d84f9a03da2d52478daa70#diff-b9cfc7f2cdf78a7f4b91a753d10865a2) in webpack.**