Changelog:All: Bump tests/mender-image-tests from `7c081c0` to `6d3e3ad`

Bumps [tests/mender-image-tests](https://github.com/mendersoftware/mender-image-tests) from `7c081c0` to `6d3e3ad`.
- [Release notes](https://github.com/mendersoftware/mender-image-tests/releases)
- [Commits](7c081c042f...6d3e3ad681b573d74cf07b8ab13f91d0f587833d)

---
updated-dependencies:
- dependency-name: tests/mender-image-tests
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

tests/mender-image-tests

@@ -1 +1 @@
-Subproject commit 7c081c042f0024e87e9e15144b18d991fb378bcd
+Subproject commit 6d3e3ad681b573d74cf07b8ab13f91d0f587833d