build(deps): update core to v1.2.0 and email-client to v1.0.0

- Update core dependency from commit 828b984 to v1.2.0
- Update email-client dependency from commit c5e36d0 to v1.0.0
- Update corresponding resolved refs in pubspec.lock

Author: fulleni

pubspec.lock

@@ -69,11 +69,11 @@ packages:
     dependency: "direct main"
     description:
       path: "."
-      ref: "828b984517edec069266579c624c7af9fbe0e2ac"
-      resolved-ref: "828b984517edec069266579c624c7af9fbe0e2ac"
+      ref: "v1.2.0"
+      resolved-ref: d052799c1ebb7bcdd1a725a2a7919948c14fa001
       url: "https://github.com/flutter-news-app-full-source-code/core.git"
     source: git
-    version: "0.0.0"
+    version: "1.2.0"
   coverage:
     dependency: transitive
     description:
@@ -94,8 +94,8 @@ packages:
     dependency: "direct main"
     description:
       path: "."
-      ref: c5e36d06b58918056dde4a58d177a39fb66bfe24
-      resolved-ref: c5e36d06b58918056dde4a58d177a39fb66bfe24
+      ref: "v1.0.0"
+      resolved-ref: "31faf0e429aeea519204dfdd26afdba36ea1d8dc"
       url: "https://github.com/flutter-news-app-full-source-code/email-client.git"
     source: git
     version: "0.0.0"

pubspec.yaml

@@ -10,11 +10,11 @@ dependencies:
   core:
     git:
       url: https://github.com/flutter-news-app-full-source-code/core.git
-      ref: 828b984517edec069266579c624c7af9fbe0e2ac
+      ref: v1.2.0
   email_client:
     git:
       url: https://github.com/flutter-news-app-full-source-code/email-client.git
-      ref: c5e36d06b58918056dde4a58d177a39fb66bfe24
+      ref: v1.0.0
 
 dev_dependencies:
   mocktail: ^1.0.4