fix(integrations): Bring back type="submit" in awsLambdaFunctionSelect (

#76460)

This regressed in GH-76118

config/tsconfig.base.json

@@ -19,7 +19,11 @@
     "moduleResolution": "node",
 
     // We add esnext to lib to pull in types for all newer ECMAScript features
-    "lib": ["esnext", "dom"],
+    "lib": [
+      "esnext",
+      "dom",
+      "dom.iterable"
+    ],
 
     // Skip type checking of all declaration files
     "skipLibCheck": true,

static/app/views/integrationPipeline/awsLambdaFunctionSelect.spec.tsx

@@ -1,9 +1,9 @@
-import {render, screen} from 'sentry-test/reactTestingLibrary';
+import {render, screen, userEvent} from 'sentry-test/reactTestingLibrary';
 
 import AwsLambdaFunctionSelect from 'sentry/views/integrationPipeline/awsLambdaFunctionSelect';
 
 describe('AwsLambdaFunctionSelect', () => {
-  it('choose lambdas', () => {
+  it('choose lambdas', async () => {
     render(
       <AwsLambdaFunctionSelect
         initialStepNumber={0}
@@ -16,6 +16,32 @@ describe('AwsLambdaFunctionSelect', () => {
     );
     expect(screen.getByRole('checkbox', {name: 'lambdaB'})).toBeInTheDocument();
     expect(screen.getByRole('button', {name: 'Finish Setup'})).toBeInTheDocument();
-    // TODO: add assertion for form post
+
+    // Uncheck lambda A
+    await userEvent.click(screen.getByRole('checkbox', {name: 'lambdaA'}));
+
+    const {promise, resolve} = Promise.withResolvers<FormData>();
+
+    const submitForm = jest.fn((e: SubmitEvent) => {
+      e.preventDefault();
+      if (e.target instanceof HTMLFormElement) {
+        resolve(new FormData(e.target));
+      }
+    });
+    window.addEventListener('submit', submitForm);
+
+    // Submit form
+    await userEvent.click(screen.getByRole('button', {name: 'Finish Setup'}));
+    expect(submitForm).toHaveBeenCalled();
+
+    // Validate data was passed
+    const formData = await promise;
+    expect(Object.fromEntries(formData.entries())).toEqual({
+      lambdaA: 'false',
+      lambdaB: 'true',
+      lambdaC: 'true',
+    });
+
+    window.removeEventListener('submit', submitForm);
   });
 });

static/app/views/integrationPipeline/components/footerWithButtons.tsx

@@ -33,7 +33,7 @@ export default function FooterWithButtons({
     href !== undefined ? (
       <LinkButton href={href} {...buttonProps} />
     ) : (
-      <Button {...buttonProps} />
+      <Button type="submit" {...buttonProps} />
     );
 
   // We use a form post here to replicate what we do with standard HTML views