Use `affected` instead of `versionUnaffected` for reporting fixed versions from DEPS

[keshav-space]

Currently, we're reporting versionUnaffected as the fixed version which is not precisely the fixed version.
We can make use of affected to get the fixed version.

"affected": "{[0.0.0-0:2.1.3)}",
"rawAffected": "Introduced: 0, Fixed: 2.1.3",

Warning
Don't use rawAffected as it's susceptible to change as shown below

GHSA-jfh8-c2jp-5v3q (as on 17-Mar-2023)

"affected": "{[0.alpha:2.3.1),[2.4:2.12.2),[2.13:2.15)}"
"rawAffected": "Introduced: 2.13.0, Fixed: 2.15.0, Introduced: 0, Fixed: 2.3.1, Introduced: 2.4, Fixed: 2.12.2"

GHSA-jfh8-c2jp-5v3q (as on 22-Dec-2022)

"affected": "{[2.4:2.12.2),[0.alpha:2.3.1),[2.13:2.15)}",
"rawAffected": ">= 2.4, < 2.12.2 or < 2.3.1 or >= 2.13.0, < 2.15.0",