Bump mocktail_image_network from 1.1.0 to 1.2.0 (#2531)

Bumps [mocktail_image_network](https://github.com/felangel/mocktail) from 1.1.0 to 1.2.0.
- [Release notes](https://github.com/felangel/mocktail/releases)
- [Commits](felangel/mocktail@mocktail-image-network-v1.1.0...mocktail-image-network-v1.2.0)

---
updated-dependencies:
- dependency-name: mocktail_image_network
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

pubspec.lock

@@ -921,10 +921,10 @@ packages:
     dependency: "direct dev"
     description:
       name: mocktail_image_network
-      sha256: "498726e24dd0aaf84329e6acf027549b292e9b782126f78406c25eeee70a0b9b"
+      sha256: a1fccbba780343517cfc552e0af2b3834d8bdb8f9f55a746c4d495ed1a8d50d6
       url: "https://pub.dev"
     source: hosted
-    version: "1.1.0"
+    version: "1.2.0"
   nested:
     dependency: transitive
     description:

pubspec.yaml

@@ -88,7 +88,7 @@ dev_dependencies:
   json_serializable: ^6.8.0
   lint: ^2.3.0
 
-  mocktail_image_network: ^1.1.0
+  mocktail_image_network: ^1.2.0
   talawa_lint:
     path: talawa_lint/