fix: uri root path checking (#5778)

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This config will display `Your service is accessible at https://my-domain.com//v2` after deploy successfully.

```yaml
http:
  path: '/v2'
```

This PR fix this.

internal/pkg/describe/uri.go

@@ -5,6 +5,7 @@ package describe
 
 import (
 	"fmt"
+	"regexp"
 	"strings"
 
 	"github.com/aws/copilot-cli/internal/pkg/term/color"
@@ -403,14 +404,17 @@ func (u *LBWebServiceURI) String() string {
 
 func (u *accessURI) strings() []string {
 	var uris []string
+	re := regexp.MustCompile("/+")
 	for _, dnsName := range u.DNSNames {
 		protocol := "http://"
 		if u.HTTPS {
 			protocol = "https://"
 		}
 		path := ""
-		if u.Path != "/" {
+		if !strings.HasPrefix(u.Path, "/") {
 			path = fmt.Sprintf("/%s", u.Path)
+		} else if u.Path != "/" {
+			path = re.ReplaceAllString(u.Path, "/")
 		}
 		uris = append(uris, color.HighlightResource(protocol+dnsName+path))
 	}

internal/pkg/describe/uri_test.go

@@ -6,9 +6,10 @@ package describe
 import (
 	"errors"
 	"fmt"
-	"github.com/aws/copilot-cli/internal/pkg/aws/ecs"
 	"testing"
 
+	"github.com/aws/copilot-cli/internal/pkg/aws/ecs"
+
 	"github.com/aws/copilot-cli/internal/pkg/deploy/cloudformation/stack"
 	"github.com/aws/copilot-cli/internal/pkg/describe/mocks"
 	"github.com/aws/copilot-cli/internal/pkg/template"
@@ -680,6 +681,24 @@ func TestLBWebServiceURI_String(t *testing.T) {
 
 			wanted: "http://jobs.test.phonetool.com",
 		},
+		"http with /v2 path": {
+			accessDNSNames: []string{"jobs.test.phonetool.com"},
+			accessPath:     "/v2",
+
+			wanted: "http://jobs.test.phonetool.com/v2",
+		},
+		"http with multiple slash path": {
+			accessDNSNames: []string{"jobs.test.phonetool.com"},
+			accessPath:     "//v2",
+
+			wanted: "http://jobs.test.phonetool.com/v2",
+		},
+		"http with non-root path": {
+			accessDNSNames: []string{"jobs.test.phonetool.com"},
+			accessPath:     "v2",
+
+			wanted: "http://jobs.test.phonetool.com/v2",
+		},
 		"cloudfront": {
 			accessDNSNames: []string{"abc.cloudfront.net"},
 			accessPath:     "svc",
@@ -707,6 +726,27 @@ func TestLBWebServiceURI_String(t *testing.T) {
 
 			wanted: "https://jobs.test.phonetool.com",
 		},
+		"https with /v2 path": {
+			accessDNSNames: []string{"jobs.test.phonetool.com"},
+			accessPath:     "/v2",
+			accessHTTPS:    true,
+
+			wanted: "https://jobs.test.phonetool.com/v2",
+		},
+		"https with multiple slash path": {
+			accessDNSNames: []string{"jobs.test.phonetool.com"},
+			accessPath:     "//v2",
+			accessHTTPS:    true,
+
+			wanted: "https://jobs.test.phonetool.com/v2",
+		},
+		"https with non-root path": {
+			accessDNSNames: []string{"jobs.test.phonetool.com"},
+			accessPath:     "v2",
+			accessHTTPS:    true,
+
+			wanted: "https://jobs.test.phonetool.com/v2",
+		},
 	}
 
 	for name, tc := range testCases {