Pin exact versions of tailwindcss and @tailwindcss/* (#16623)

This PR fixes an issue where installing a specific version of
`@tailwindcss/postcss` and `tailwindcss` could still result in a version
mismatch. This is because we were relying on `^4.0.6` for example
instead of `4.0.6`.

This PR now pins all these versions to prevent this:
```
❯ pnpm why tailwindcss
devDependencies:
@tailwindcss/postcss 4.0.5
├─┬ @tailwindcss/node 4.0.6
│ └── tailwindcss 4.0.6
└── tailwindcss 4.0.5
```

Author: RobinMalfait

CHANGELOG.md

@@ -21,6 +21,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Ensure drop shadow utilities don't inherit unexpectedly ([#16471](https://github.com/tailwindlabs/tailwindcss/pull/16471))
 - Export backwards compatible config and plugin types from `tailwindcss/plugin` ([#16505](https://github.com/tailwindlabs/tailwindcss/pull/16505))
 - Ensure JavaScript plugins that emit nested rules referencing to the utility name work as expected ([#16539](https://github.com/tailwindlabs/tailwindcss/pull/16539))
+- Pin exact versions of `tailwindcss` and `@tailwindcss/*` ([#16623](https://github.com/tailwindlabs/tailwindcss/pull/16623))
 - Upgrade: Report errors when updating dependencies ([#16504](https://github.com/tailwindlabs/tailwindcss/pull/16504))
 - Upgrade: Ensure a `darkMode` JS config setting with block syntax converts to use `@slot` ([#16507](https://github.com/tailwindlabs/tailwindcss/pull/16507))
 

packages/@tailwindcss-cli/package.json

@@ -30,8 +30,8 @@
   },
   "dependencies": {
     "@parcel/watcher": "^2.5.1",
-    "@tailwindcss/node": "workspace:^",
-    "@tailwindcss/oxide": "workspace:^",
+    "@tailwindcss/node": "workspace:*",
+    "@tailwindcss/oxide": "workspace:*",
     "enhanced-resolve": "^5.18.1",
     "lightningcss": "catalog:",
     "mri": "^1.2.0",

packages/@tailwindcss-postcss/package.json

@@ -31,8 +31,8 @@
   },
   "dependencies": {
     "@alloc/quick-lru": "^5.2.0",
-    "@tailwindcss/node": "workspace:^",
-    "@tailwindcss/oxide": "workspace:^",
+    "@tailwindcss/node": "workspace:*",
+    "@tailwindcss/oxide": "workspace:*",
     "lightningcss": "catalog:",
     "postcss": "^8.4.41",
     "tailwindcss": "workspace:*"

packages/@tailwindcss-standalone/package.json

@@ -26,12 +26,12 @@
   ],
   "dependencies": {
     "@tailwindcss/aspect-ratio": "^0.4.2",
-    "@tailwindcss/cli": "workspace:^",
+    "@tailwindcss/cli": "workspace:*",
     "@tailwindcss/forms": "^0.5.10",
     "@tailwindcss/typography": "^0.5.16",
     "detect-libc": "1.0.3",
     "enhanced-resolve": "^5.18.1",
-    "tailwindcss": "workspace:^"
+    "tailwindcss": "workspace:*"
   },
   "__notes": "These binary packages must be included so Bun can build the CLI for all supported platforms. We also rely on Lightning CSS and Parcel being patched so Bun can statically analyze the executables.",
   "devDependencies": {

packages/@tailwindcss-upgrade/package.json

@@ -27,8 +27,8 @@
     "access": "public"
   },
   "dependencies": {
-    "@tailwindcss/node": "workspace:^",
-    "@tailwindcss/oxide": "workspace:^",
+    "@tailwindcss/node": "workspace:*",
+    "@tailwindcss/oxide": "workspace:*",
     "braces": "^3.0.3",
     "dedent": "1.5.3",
     "enhanced-resolve": "^5.18.1",

packages/@tailwindcss-vite/package.json

@@ -28,8 +28,8 @@
     }
   },
   "dependencies": {
-    "@tailwindcss/node": "workspace:^",
-    "@tailwindcss/oxide": "workspace:^",
+    "@tailwindcss/node": "workspace:*",
+    "@tailwindcss/oxide": "workspace:*",
     "lightningcss": "catalog:",
     "tailwindcss": "workspace:*"
   },