Simplify Terraform module usage instructions

This changes the module instance name to an example string
to make it clear that the module instance name does not
need to be based on the package name.

Changelog: fixed

Closes https://gitlab.com/gitlab-org/gitlab/-/issues/334327

app/assets/javascripts/packages_and_registries/infrastructure_registry/components/terraform_installation.vue

@@ -14,8 +14,7 @@ export default {
   computed: {
     ...mapState(['packageEntity', 'terraformHelpPath', 'gitlabHost', 'projectPath']),
     provisionInstructions() {
-      // eslint-disable-next-line @gitlab/require-i18n-strings
-      return `module "${this.packageEntity.name}" {
+      return `module "my_module_name" {
   source = "${this.gitlabHost}/${this.projectPath}/${this.packageEntity.name}"
   version = "${this.packageEntity.version}"
 }`;

spec/frontend/packages_and_registries/infrastructure_registry/components/__snapshots__/terraform_installation_spec.js.snap

@@ -10,7 +10,7 @@ exports[`TerraformInstallation renders all the messages 1`] = `
    
   <code-instruction-stub
     copytext="Copy Terraform Command"
-    instruction="module \\"Test/system-22\\" {
+    instruction="module \\"my_module_name\\" {
   source = \\"bar.dev/foo/Test/system-22\\"
   version = \\"0.1\\"
 }"

spec/frontend/packages_and_registries/infrastructure_registry/components/terraform_installation_spec.js

@@ -42,7 +42,7 @@ describe('TerraformInstallation', () => {
   describe('installation commands', () => {
     it('renders the correct command', () => {
       expect(findCodeInstructions().at(0).props('instruction')).toMatchInlineSnapshot(`
-        "module \\"Test/system-22\\" {
+        "module \\"my_module_name\\" {
           source = \\"bar.dev/foo/Test/system-22\\"
           version = \\"0.1\\"
         }"