Fix bug hidden on CI and make ci failed if tests failure (#29254)

The tests on migration tests failed but CI reports successfully


https://github.com/go-gitea/gitea/actions/runs/7364373807/job/20044685969#step:8:141

This PR will fix the bug on migration v283 and also the CI hidden
behaviour.

The reason is on the Makefile

`GITEA_ROOT="$(CURDIR)" GITEA_CONF=tests/mysql.ini $(GO) test
$(GOTESTFLAGS) -tags='$(TEST_TAGS)' $(MIGRATE_TEST_PACKAGES)` will
return the error exit code.

But 

`for pkg in $(shell $(GO) list
code.gitea.io/gitea/models/migrations/...); do \
GITEA_ROOT="$(CURDIR)" GITEA_CONF=tests/mysql.ini $(GO) test
$(GOTESTFLAGS) -tags '$(TEST_TAGS)' $$pkg; \
	done`

will not work.

This also fix #29602

models/migrations/fixtures/Test_RepositoryFormat/comment.yml

@@ -0,0 +1,3 @@
+-
+  id: 1
+  commit_sha: 19fe5caf872476db265596eaac1dc35ad1c6422d

models/migrations/fixtures/Test_RepositoryFormat/commit_status.yml

@@ -0,0 +1,3 @@
+-
+  id: 1
+  context_hash: 19fe5caf872476db265596eaac1dc35ad1c6422d

models/migrations/fixtures/Test_RepositoryFormat/pull_request.yml

@@ -0,0 +1,5 @@
+-
+  id: 1
+  commit_sha: 19fe5caf872476db265596eaac1dc35ad1c6422d
+  merge_base: 19fe5caf872476db265596eaac1dc35ad1c6422d
+  merged_commit_id: 19fe5caf872476db265596eaac1dc35ad1c6422d

models/migrations/fixtures/Test_RepositoryFormat/release.yml

@@ -0,0 +1,3 @@
+-
+  id: 1
+  sha1: 19fe5caf872476db265596eaac1dc35ad1c6422d

models/migrations/fixtures/Test_RepositoryFormat/repo_archiver.yml

@@ -0,0 +1,3 @@
+-
+  id: 1
+  commit_id: 19fe5caf872476db265596eaac1dc35ad1c6422d

models/migrations/fixtures/Test_RepositoryFormat/repo_indexer_status.yml

@@ -0,0 +1,3 @@
+-
+  id: 1
+  commit_sha: 19fe5caf872476db265596eaac1dc35ad1c6422d

models/migrations/fixtures/Test_RepositoryFormat/review_state.yml

@@ -0,0 +1,3 @@
+-
+  id: 1
+  commit_sha: 19fe5caf872476db265596eaac1dc35ad1c6422d