Fix various bugs (#35684)

1. Fix incorrect column in `applySubscribedCondition`, add a test
2. Fix debian version parsing, add more tests fix #35695
3. Fix log level for HTTP errors, fix #35651
4. Fix abused "panic" handler in API `Migrate`
5. Fix the redirection from PR to issue, add a test
6. Fix Actions variable & secret name validation, add more tests
    * envNameCIRegexMatch is unnecessary, removed
    * validating in "delete" function doesn't make sense, removed
7. Fix incorrect link in release email

---------

Signed-off-by: wxiaoguang <wxiaoguang@gmail.com>
Co-authored-by: delvh <dev.lh@web.de>

modules/packages/debian/metadata.go

@@ -46,7 +46,7 @@ var (
 	// https://www.debian.org/doc/debian-policy/ch-controlfields.html#source
 	namePattern = regexp.MustCompile(`\A[a-z0-9][a-z0-9+-.]+\z`)
 	// https://www.debian.org/doc/debian-policy/ch-controlfields.html#version
-	versionPattern = regexp.MustCompile(`\A(?:[0-9]:)?[a-zA-Z0-9.+~]+(?:-[a-zA-Z0-9.+-~]+)?\z`)
+	versionPattern = regexp.MustCompile(`\A(?:(0|[1-9][0-9]*):)?[a-zA-Z0-9.+~]+(?:-[a-zA-Z0-9.+-~]+)?\z`)
 )
 
 type Package struct {

modules/packages/debian/metadata_test.go

@@ -176,4 +176,12 @@ func TestParseControlFile(t *testing.T) {
 		assert.Equal(t, []string{"a", "b"}, p.Metadata.Dependencies)
 		assert.Equal(t, full, p.Control)
 	})
+
+	t.Run("ValidVersions", func(t *testing.T) {
+		for _, version := range []string{"1.0", "0:1.2", "9:1.0", "10:1.0", "900:1a.2b-x-y_z~1+2"} {
+			p, err := ParseControlFile(buildContent("testpkg", version, "amd64"))
+			assert.NoError(t, err, "ParseControlFile with version %q", version)
+			assert.NotNil(t, p)
+		}
+	})
 }