fix: correct --offline ternary in blockPackageJson (#1893)

## PR Checklist

- [x] Addresses an existing open issue: fixes #1890
- [x] That issue was marked as [`status: accepting
prs`](/~https://github.com/JoshuaKGoldberg/create-typescript-app/issues?q=is%3Aopen+is%3Aissue+label%3A%22status%3A+accepting+prs%22)
- [x] Steps in
[CONTRIBUTING.md](/~https://github.com/JoshuaKGoldberg/create-typescript-app/blob/main/.github/CONTRIBUTING.md)
were taken

## Overview

_sigh_

💖

src/next/blocks/blockPackageJson.test.ts

@@ -21,7 +21,7 @@ describe("blockPackageJson", () => {
 			  "scripts": [
 			    {
 			      "commands": [
-			        "pnpm install --offline",
+			        "pnpm install",
 			      ],
 			      "phase": 1,
 			    },
@@ -44,7 +44,7 @@ describe("blockPackageJson", () => {
 			  "scripts": [
 			    {
 			      "commands": [
-			        "pnpm install --offline",
+			        "pnpm install",
 			      ],
 			      "phase": 1,
 			    },
@@ -82,7 +82,7 @@ describe("blockPackageJson", () => {
 			  "scripts": [
 			    {
 			      "commands": [
-			        "pnpm install --offline",
+			        "pnpm install",
 			        "pnpm dedupe",
 			      ],
 			      "phase": 1,
@@ -117,7 +117,7 @@ describe("blockPackageJson", () => {
 			  "scripts": [
 			    {
 			      "commands": [
-			        "pnpm install --offline",
+			        "pnpm install",
 			        "pnpm dedupe",
 			      ],
 			      "phase": 1,

src/next/blocks/blockPackageJson.ts

@@ -101,7 +101,7 @@ export const blockPackageJson = base.createBlock({
 			scripts: [
 				{
 					commands: [
-						offline ? "pnpm install" : "pnpm install --offline",
+						offline ? "pnpm install --offline" : "pnpm install",
 						...addons.cleanupCommands,
 					],
 					phase: CommandPhase.Install,