Unpin CE Kafka protocol version from older version (#3760)

Signed-off-by: Matthias Wessendorf <mwessend@redhat.com>

go.mod

@@ -4,7 +4,7 @@ go 1.21
 
 require (
 	github.com/IBM/sarama v1.41.2
-	github.com/cloudevents/sdk-go/protocol/kafka_sarama/v2 v2.3.1-0.20230918062809-28780a762825
+	github.com/cloudevents/sdk-go/protocol/kafka_sarama/v2 v2.15.2
 	github.com/cloudevents/sdk-go/v2 v2.15.2
 	github.com/google/go-cmp v0.6.0
 	github.com/google/gofuzz v1.2.0

go.sum

@@ -125,8 +125,8 @@ github.com/cloudevents/conformance v0.2.0 h1:NvSXOKlagcsOWMEbi8U7Ex/0oQ4JZE1HQ45
 github.com/cloudevents/conformance v0.2.0/go.mod h1:rHKDwylBH89Rns6U3wL9ww8bg9/4GbwRCDNuyoC6bcc=
 github.com/cloudevents/sdk-go/observability/opencensus/v2 v2.13.0 h1:Mf5y5GYVusfOpPQsKHOvr9c3Y76fZnSZzuZo+LQr/aU=
 github.com/cloudevents/sdk-go/observability/opencensus/v2 v2.13.0/go.mod h1:vgBrMXc1h8htR8PUlGViBcNEkri4fw98nY8Tqsgdtfs=
-github.com/cloudevents/sdk-go/protocol/kafka_sarama/v2 v2.3.1-0.20230918062809-28780a762825 h1:7yA1t+ruyBVy8KHXAxk2RlHz3r3+lUPNTtss90FNcxo=
-github.com/cloudevents/sdk-go/protocol/kafka_sarama/v2 v2.3.1-0.20230918062809-28780a762825/go.mod h1:hh+AlY88cpaWzAJXrcTer/IEqOjZoHc/nQOYmnRZgqE=
+github.com/cloudevents/sdk-go/protocol/kafka_sarama/v2 v2.15.2 h1:dl2xbFLV2FGd3OBNC6ncSN9l+gPNEP0DYE+1yKVV5DQ=
+github.com/cloudevents/sdk-go/protocol/kafka_sarama/v2 v2.15.2/go.mod h1:jXfl9I1Q78+4zdYGTjHNQcrbNtJL63jpzSgVE2rE79U=
 github.com/cloudevents/sdk-go/sql/v2 v2.13.0 h1:gMJvQ3XFkygY9JmrusgK80d9yRAb8+J3X8IA1OC+oc0=
 github.com/cloudevents/sdk-go/sql/v2 v2.13.0/go.mod h1:XZRQBCgRreddIpQrdjBJQUrRg3BCs3aikplJQkHrK44=
 github.com/cloudevents/sdk-go/v2 v2.15.2 h1:54+I5xQEnI73RBhWHxbI1XJcqOFOVJN85vb41+8mHUc=

vendor/modules.txt

@@ -67,8 +67,8 @@ github.com/cloudevents/conformance/pkg/http
 ## explicit; go 1.17
 github.com/cloudevents/sdk-go/observability/opencensus/v2/client
 github.com/cloudevents/sdk-go/observability/opencensus/v2/http
-# github.com/cloudevents/sdk-go/protocol/kafka_sarama/v2 v2.3.1-0.20230918062809-28780a762825
-## explicit; go 1.17
+# github.com/cloudevents/sdk-go/protocol/kafka_sarama/v2 v2.15.2
+## explicit; go 1.18
 github.com/cloudevents/sdk-go/protocol/kafka_sarama/v2
 # github.com/cloudevents/sdk-go/sql/v2 v2.13.0
 ## explicit; go 1.17