Finalize Conan v2 support (#2587)

* Add support for conan lock v2 (#2461)

* conan lock 2.x requires field support

Signed-off-by: houdini91 <mdstrauss91@gmail.com>

* PR review, struct renaming

Signed-off-by: houdini91 <mdstrauss91@gmail.com>

---------

Signed-off-by: houdini91 <mdstrauss91@gmail.com>

* decompose conanlock parser + add tests

Signed-off-by: Alex Goodman <wagoodman@users.noreply.github.com>

---------

Signed-off-by: houdini91 <mdstrauss91@gmail.com>
Signed-off-by: Alex Goodman <wagoodman@users.noreply.github.com>
Co-authored-by: mikey strauss <mdstrauss91@gmail.com>

syft/pkg/conan.go

@@ -1,7 +1,7 @@
 package pkg
 
-// ConanLockEntry represents a single "node" entry from a conan.lock file.
-type ConanLockEntry struct {
+// ConanV1LockEntry represents a single "node" entry from a conan.lock V1 file.
+type ConanV1LockEntry struct {
 	Ref            string    `json:"ref"`
 	PackageID      string    `json:"package_id,omitempty"`
 	Prev           string    `json:"prev,omitempty"`
@@ -13,6 +13,17 @@ type ConanLockEntry struct {
 	Context        string    `json:"context,omitempty"`
 }
 
+// ConanV2LockEntry represents a single "node" entry from a conan.lock V2 file.
+type ConanV2LockEntry struct {
+	Ref             string `json:"ref"`
+	PackageID       string `json:"packageID,omitempty"`
+	Username        string `json:"username,omitempty"`
+	Channel         string `json:"channel,omitempty"`
+	RecipeRevision  string `json:"recipeRevision,omitempty"`
+	PackageRevision string `json:"packageRevision,omitempty"`
+	TimeStamp       string `json:"timestamp,omitempty"`
+}
+
 // ConanfileEntry represents a single "Requires" entry from a conanfile.txt.
 type ConanfileEntry struct {
 	Ref string `mapstructure:"ref" json:"ref"`