Merge pull request #255 from KyleWiese/main

Bump golang version and update unit tests to reflect new mtls error string

Author: KyleWiese

.github/workflows/build.yaml

@@ -30,7 +30,7 @@ jobs:
         name: Set up Go
         uses: actions/setup-go@v2
         with:
-          go-version: 1.16
+          go-version: 1.21
       - 
         name: Reviewdog Lint
         uses: reviewdog/action-golangci-lint@v1
@@ -48,7 +48,7 @@ jobs:
         name: Set up Go
         uses: actions/setup-go@v2
         with:
-          go-version: 1.16
+          go-version: 1.21
       - 
         name: Run Unit tests
         run: go test -coverprofile=coverage.txt ./...

apigee/edge_client_test.go

@@ -283,7 +283,7 @@ func TestMutualTLSNoCerts(t *testing.T) {
 	}
 
 	_, err = c.Do(req, nil)
-	testutil.ErrorContains(t, err, "remote error: tls: bad certificate")
+	testutil.ErrorContains(t, err, "remote error: tls: certificate required")
 }
 
 func newMutualTLSServer() *httptest.Server {