support for compress in forward output plugin

Signed-off-by: Ravi Ghosh <ghosh.ravi@gmail.com>

charts/fluent-operator/charts/fluent-bit-crds/crds/fluentbit.fluent.io_outputs.yaml

@@ -1147,6 +1147,12 @@ spec:
                     maximum: 65535
                     minimum: 1
                     type: integer
+                  compress:
+                    description: Set payload compression mechanism. Option available
+                      is 'gzip'
+                    enum:
+                    - gzip
+                    type: string
                   requireAckResponse:
                     description: |-
                       Send "chunk"-option and wait for "ack" response from server.