Add support for dependency relationships for alpine (apk) (#1063)

* Fix type of pull deps and add support for provides

Signed-off-by: Dan Luhring <dan+github@luhrings.com>

* [wip] apk dependency lookup

Signed-off-by: Alex Goodman <alex.goodman@anchore.com>

* update whitespace for linter

Signed-off-by: Christopher Phillips <christopher.phillips@anchore.com>

* adjust test conditions

Signed-off-by: Timothy Gerla <tim@gerla.net>

* fix TODOs and improve Provides parser

* run simports after main merge

Signed-off-by: Christopher Phillips <christopher.phillips@anchore.com>

* add tests to cover apk relationship parsing cases

Signed-off-by: Alex Goodman <alex.goodman@anchore.com>

* generate JSON schema for breaking changes to apk metadata

Signed-off-by: Alex Goodman <alex.goodman@anchore.com>

* update tests to account for additional dependencies

Signed-off-by: Alex Goodman <alex.goodman@anchore.com>

* [wip] fix relationship encoding for cyclonedx

Signed-off-by: Alex Goodman <alex.goodman@anchore.com>

* simplify package relationships that can be expressed

Signed-off-by: Alex Goodman <alex.goodman@anchore.com>

Signed-off-by: Dan Luhring <dan+github@luhrings.com>
Signed-off-by: Alex Goodman <alex.goodman@anchore.com>
Signed-off-by: Christopher Phillips <christopher.phillips@anchore.com>
Signed-off-by: Timothy Gerla <tim@gerla.net>
Co-authored-by: Alex Goodman <alex.goodman@anchore.com>
Co-authored-by: Christopher Phillips <christopher.phillips@anchore.com>
Co-authored-by: Timothy Gerla <tim@gerla.net>

internal/constants.go

@@ -6,5 +6,5 @@ const (
 
 	// JSONSchemaVersion is the current schema version output by the JSON encoder
 	// This is roughly following the "SchemaVer" guidelines for versioning the JSON schema. Please see schema/json/README.md for details on how to increment.
-	JSONSchemaVersion = "5.1.0"
+	JSONSchemaVersion = "6.0.0"
 )