Add package spamassassin

This commit was autocreated by AutoGits PR Review Bot

referencing PRs:
 PR: testing/spamassassin!3

.gitmodules

@@ -373,3 +373,7 @@
 [submodule "zstd"]
 	path = zstd
 	url = https://src.opensuse.org/testing/zstd.git
+[submodule "spamassassin"]
+	path = spamassassin
+	url = gitea@src.opensuse.org:testing/spamassassin.git
+	branch = factory

workflow.config

@@ -1,6 +1,5 @@
 {
     "ObsProject": "home:adamm:git:1",
     "Workflows": ["direct", "pr"],
-    "Organization": "testing",
-    "MergeMode": "replace"
+    "Organization": "testing"
 }