http2: adds test for http2.errorcode keyword

Ticket: 7889

diff --git a/tests/http2-errorcode/README.md b/tests/http2-errorcode/README.md
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+# Description
+
+Test http2.errorcode keyword
+
+# Ticket
+
+https://redmine.openinfosecfoundation.org/issues/7889
+
+# PCAP
+
+The pcap comes from https://github.com/grpc/grpc-node/issues/2744

diff --git a/tests/http2-errorcode/input.pcap b/tests/http2-errorcode/input.pcap
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Binary files /dev/null and b/tests/http2-errorcode/input.pcap differ

diff --git a/tests/http2-errorcode/test.rules b/tests/http2-errorcode/test.rules
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+alert http2 any any -> any any (http2.errorcode:INTERNAL_ERROR; sid:1;)
+alert http2 any any -> any any (http2.errorcode:!NO_ERROR; sid:2;)
+# no match
+alert http2 any any -> any any (http2.errorcode:HTTP_1_1_REQUIRED; sid:3;)
+# new format
+alert http2 any any -> any any (http2.errorcode:HTTP11_REQUIRED; sid:4;)

diff --git a/tests/http2-errorcode/test.yaml b/tests/http2-errorcode/test.yaml
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+requires:
+  min-version: 9
+
+# disables checksum verification
+args:
+  - -k none
+
+checks:
+  - filter:
+      count: 2
+      match:
+        event_type: alert
+        alert.signature_id: 1
+        http.http2.request.error_code: INTERNALERROR
+  - filter:
+      count: 2
+      match:
+        event_type: alert
+        alert.signature_id: 2
+        http.http2.request.error_code: INTERNALERROR
+  - filter:
+      count: 0
+      match:
+        event_type: alert
+        alert.signature_id: 3