Remove check for Server header in curl request tests

Starting on version 1.181.0, capi will no longer report the version of
the nginx server to ensure that no information is leaked.
For more information check cloudfoundry/capi-release#406

Signed-off-by: João Pereira <joaod@vmware.com>

integration/v7/isolated/curl_command_test.go

@@ -8,7 +8,6 @@ import (
 	"strings"
 
 	. "code.cloudfoundry.org/cli/cf/util/testhelpers/matchers"
-
 	"code.cloudfoundry.org/cli/integration/helpers"
 	. "github.com/onsi/ginkgo/v2"
 	. "github.com/onsi/gomega"
@@ -57,11 +56,9 @@ var _ = Describe("curl command", func() {
 
 	var ExpectResponseHeaders = func(session *Session) {
 		Eventually(session).Should(Say("HTTP/1.1 200 OK"))
-		Eventually(session).Should(Say(`Connection: .+`))
 		Eventually(session).Should(Say(`Content-Length: .+`))
 		Eventually(session).Should(Say(`Content-Type: .+`))
 		Eventually(session).Should(Say(`Date: .+`))
-		Eventually(session).Should(Say(`Server: .+`))
 		Eventually(session).Should(Say(`X-Content-Type-Options: .+`))
 		Eventually(session).Should(Say(`X-Vcap-Request-Id: .+`))
 	}
@@ -386,15 +383,27 @@ var _ = Describe("curl command", func() {
 			})
 
 			When("--output is passed with a file name", func() {
-				It("writes the response body to the file but the other output to stdout", func() {
+				It("writes the response headers and body to the file", func() {
 					outFile, err := os.CreateTemp("", "output*.json")
 					Expect(err).ToNot(HaveOccurred())
 					session := helpers.CF("curl", "/v2/apps", "-i", "--output", outFile.Name())
 					Eventually(session).Should(Exit(0))
 					ExpectResponseHeaders(session)
 					body, err := os.ReadFile(outFile.Name())
 					Expect(err).ToNot(HaveOccurred())
-					Expect(string(body)).To(MatchJSON(expectedJSON))
+
+					contents := string(body)
+					jsonStartsAt := strings.Index(contents, "{")
+
+					Expect(contents).To(ContainSubstring("HTTP/1.1 200 OK"))
+					Expect(contents).To(MatchRegexp(`Content-Length: .+`))
+					Expect(contents).To(MatchRegexp(`Content-Type: .+`))
+					Expect(contents).To(MatchRegexp(`Date: .+`))
+					Expect(contents).To(MatchRegexp(`X-Content-Type-Options: .+`))
+					Expect(contents).To(MatchRegexp(`X-Vcap-Request-Id: .+`))
+
+					actualJSON := contents[jsonStartsAt:]
+					Expect(actualJSON).To(MatchJSON(expectedJSON))
 				})
 
 				When("--output is passed and CF_TRACE is set to a file", func() {