fix: uppercased package in json

[kzantow]

A missing JSON tag resulted in an uppercased Package key being output incorectly; this PR corrects the issue.

Fixes #1877

[spiffcs]

🟢
@kzantow nice find on this one instance!

Given that below searchedBy is interface{} are there any other structs that are used here that are missing json tags?

grype/grype/presenter/models/match.go

Lines 21 to 26 in 316c0e9

	type MatchDetails struct {
	Type string `json:"type"`
	Matcher string `json:"matcher"`
	SearchedBy interface{} `json:"searchedBy"` // The specific attributes that were used to search (other than package name and version) --this indicates "how" the match was made.
	Found interface{} `json:"found"` // The specific attributes on the vulnerability object that were matched with --this indicates "what" was matched on / within.
	}

[kzantow]

I searched around for searchedby and package and this was the only one I could find that needed a tag. Most of the searchedby entries are map[string]any like here and here. And this fixes all the uppercase entries in the image referenced in the ticket, e.g.:

            "package": {
              "name": "busybox",
              "version": "1.36.1-r5"
            }