ci: Tweak the name and email of the in-container git configuration

This change makes the git operations reference the project's name and a
generic project CI email.

Signed-off-by: Andrei Gherzan <andrei.gherzan@huawei.com>

.oniro-ci/containers/bitbake-builder/.gitconfig

@@ -2,5 +2,5 @@
 # SPDX-License-Identifier: Apache-2.0
 
 [user]
-	name = OSTC Builder 
-	email = ostc-builder@example.org
+	name = Oniro Project CI
+	email = oniro-dev@eclipse.org

.oniro-ci/containers/docs-builder/.gitconfig

@@ -2,5 +2,5 @@
 # SPDX-License-Identifier: Apache-2.0
 
 [user]
-	name = OSTC Builder 
-	email = ostc-builder@example.org
+	name = Oniro Project CI
+	email = oniro-dev@eclipse.org