upcoming: [M3-10486] - Update dual-stack labeling in VPC Create (linode#12746)

## Description 📝
Copy adjustments to the VPC Create flow as requested by Daniel

## How to test 🧪

### Prerequisites

(How to setup test environment)

- Pull this PR and point to devcloud (ensure your account has vpc ipv6 customer tag)

### Verification steps

(How to verify changes)

- [ ] Ensure the VPC IPv6 feature flag is enabled and your account has the VPC Dual Stack account capability
- [ ] Go to the VPC Create page
- [ ] You should see the updated label changes `IP Stack` and `(dual-stack)`

Author: hana-akamai

packages/manager/.changeset/pr-12746-upcoming-features-1755808123912.md

@@ -0,0 +1,5 @@
+---
+"@linode/manager": Upcoming Features
+---
+
+Update dual-stack labeling in VPC Create ([#12746](https://github.com/linode/manager/pull/12746))

packages/manager/src/features/VPCs/VPCCreate/FormComponents/VPCTopSectionContent.test.tsx

@@ -37,10 +37,10 @@ describe('VPC Top Section form content', () => {
     expect(screen.getByText('VPC Label')).toBeVisible();
     expect(screen.getByText('Description')).toBeVisible();
     // @TODO VPC IPv6: Remove this check once VPC IPv6 is in GA
-    expect(screen.queryByText('Networking IP Stack')).not.toBeInTheDocument();
+    expect(screen.queryByText('IP Stack')).not.toBeInTheDocument();
   });
 
-  it('renders a Networking IP Stack section with IPv4 pre-checked if the vpcIpv6 feature flag is enabled', async () => {
+  it('renders an IP Stack section with IPv4 pre-checked if the vpcIpv6 feature flag is enabled', async () => {
     const account = accountFactory.build({
       capabilities: ['VPC Dual Stack'],
     });
@@ -66,7 +66,7 @@ describe('VPC Top Section form content', () => {
     });
 
     await waitFor(() => {
-      expect(screen.getByText('Networking IP Stack')).toBeVisible();
+      expect(screen.getByText('IP Stack')).toBeVisible();
     });
 
     const NetworkingIPStackRadios = screen.getAllByRole('radio');
@@ -100,7 +100,7 @@ describe('VPC Top Section form content', () => {
     });
 
     await waitFor(() => {
-      expect(screen.getByText('Networking IP Stack')).toBeVisible();
+      expect(screen.getByText('IP Stack')).toBeVisible();
     });
 
     const NetworkingIPStackRadios = screen.getAllByRole('radio');
@@ -140,7 +140,7 @@ describe('VPC Top Section form content', () => {
     });
 
     await waitFor(() => {
-      expect(screen.getByText('Networking IP Stack')).toBeVisible();
+      expect(screen.getByText('IP Stack')).toBeVisible();
     });
 
     const NetworkingIPStackRadios = screen.getAllByRole('radio');

packages/manager/src/features/VPCs/VPCCreate/FormComponents/VPCTopSectionContent.tsx

@@ -138,7 +138,7 @@ export const VPCTopSectionContent = (props: Props) => {
       />
       {isDualStackEnabled && (
         <Box marginTop={2}>
-          <FormLabel>Networking IP Stack </FormLabel>
+          <FormLabel>IP Stack </FormLabel>
           <Controller
             control={control}
             name="ipv6"
@@ -189,7 +189,7 @@ export const VPCTopSectionContent = (props: Props) => {
                       sm: 12,
                       xs: 12,
                     }}
-                    heading="IPv4 + IPv6 (Dual Stack)"
+                    heading="IPv4 + IPv6 (dual-stack)"
                     onClick={() => {
                       field.onChange([
                         {