ci(renovate): use the "chore" type for every PR

Otherwise, if the depType is a known "production dependency" type (e.g.
dependencies or require), then Renovate would use the "fix" prefix.

Signed-off-by: Michael Adler <michael.adler@siemens.com>

renovate.json5

@@ -4,6 +4,7 @@
     "config:best-practices",
     ":gitSignOff",
     ":semanticCommits",
+    ":semanticCommitTypeAll(chore)",
     ":prHourlyLimitNone",
     ":prConcurrentLimitNone",
     "schedule:monthly",