Update heroku/buildpacks-nodejs to v2.6.6 (#467)

## heroku/nodejs

### Changed

- Updated `heroku/nodejs-corepack` to `2.6.6`.
- Updated `heroku/nodejs-engine` to `2.6.6`.
- Updated `heroku/nodejs-npm-engine` to `2.6.6`.
- Updated `heroku/nodejs-npm-install` to `2.6.6`.
- Updated `heroku/nodejs-pnpm-engine` to `2.6.6`.
- Updated `heroku/nodejs-pnpm-install` to `2.6.6`.
- Updated `heroku/nodejs-yarn` to `2.6.6`.

## heroku/nodejs-corepack

- No changes.

## heroku/nodejs-engine

- Added Node.js version 21.6.2.
- Added Node.js version 20.11.1.
- Added Node.js version 18.19.1.

## heroku/nodejs-function

### Changed

- Updated `heroku/nodejs-engine` to `2.6.6`.
- Updated `heroku/nodejs-function-invoker` to `2.6.6`.
- Updated `heroku/nodejs-npm` to `2.6.6`.

## heroku/nodejs-function-invoker

- No changes.

## heroku/nodejs-npm

- No changes.

## heroku/nodejs-npm-engine

- No changes.

## heroku/nodejs-npm-install

- No changes.

## heroku/nodejs-pnpm-engine

- No changes.

## heroku/nodejs-pnpm-install

- No changes.

## heroku/nodejs-yarn

- Added Yarn version 3.8.0.

Co-authored-by: heroku-linguist[bot] <136119646+heroku-linguist[bot]@users.noreply.github.com>

Author: heroku-linguist[bot]

builder-20/builder.toml

@@ -18,7 +18,7 @@ version = "0.18.5"
 
 [[buildpacks]]
   id = "heroku/nodejs"
-  uri = "docker://docker.io/heroku/buildpack-nodejs@sha256:adeffc67d226f1d36c9ac0766a189a34efbfe3bd62c1bc07aa9a24c785fe4f70"
+  uri = "docker://docker.io/heroku/buildpack-nodejs@sha256:7eda1ea001f0290226578615d9ef1c8b1bf35774b40992813096c258cd475789"
 
 [[buildpacks]]
   id = "heroku/php"
@@ -52,11 +52,11 @@ version = "0.18.5"
 [[order]]
   [[order.group]]
     id = "heroku/nodejs-engine"
-    version = "2.6.5"
+    version = "2.6.6"
     optional = true
   [[order.group]]
     id = "heroku/nodejs-yarn"
-    version = "2.6.5"
+    version = "2.6.6"
     optional = true
   [[order.group]]
     id = "heroku/jvm"
@@ -73,7 +73,7 @@ version = "0.18.5"
 [[order]]
   [[order.group]]
     id = "heroku/nodejs"
-    version = "2.6.5"
+    version = "2.6.6"
   [[order.group]]
     id = "heroku/procfile"
     version = "2.0.2"

builder-22/builder.toml

@@ -18,7 +18,7 @@ version = "0.18.5"
 
 [[buildpacks]]
   id = "heroku/nodejs"
-  uri = "docker://docker.io/heroku/buildpack-nodejs@sha256:adeffc67d226f1d36c9ac0766a189a34efbfe3bd62c1bc07aa9a24c785fe4f70"
+  uri = "docker://docker.io/heroku/buildpack-nodejs@sha256:7eda1ea001f0290226578615d9ef1c8b1bf35774b40992813096c258cd475789"
 
 [[buildpacks]]
   id = "heroku/php"
@@ -52,11 +52,11 @@ version = "0.18.5"
 [[order]]
   [[order.group]]
     id = "heroku/nodejs-engine"
-    version = "2.6.5"
+    version = "2.6.6"
     optional = true
   [[order.group]]
     id = "heroku/nodejs-yarn"
-    version = "2.6.5"
+    version = "2.6.6"
     optional = true
   [[order.group]]
     id = "heroku/jvm"
@@ -73,7 +73,7 @@ version = "0.18.5"
 [[order]]
   [[order.group]]
     id = "heroku/nodejs"
-    version = "2.6.5"
+    version = "2.6.6"
   [[order.group]]
     id = "heroku/procfile"
     version = "2.0.2"

buildpacks-20/builder.toml

@@ -29,7 +29,7 @@ version = "0.17.4"
 
 [[buildpacks]]
   id = "heroku/nodejs"
-  uri = "docker://docker.io/heroku/buildpack-nodejs@sha256:adeffc67d226f1d36c9ac0766a189a34efbfe3bd62c1bc07aa9a24c785fe4f70"
+  uri = "docker://docker.io/heroku/buildpack-nodejs@sha256:7eda1ea001f0290226578615d9ef1c8b1bf35774b40992813096c258cd475789"
 
 [[buildpacks]]
   id = "heroku/php"
@@ -114,7 +114,7 @@ version = "0.17.4"
 [[order]]
   [[order.group]]
     id = "heroku/nodejs"
-    version = "2.6.5"
+    version = "2.6.6"
   [[order.group]]
     id = "heroku/procfile"
     version = "2.0.2"

salesforce-functions/builder.toml

@@ -19,12 +19,12 @@ version = "0.17.4"
 
 [[buildpacks]]
   id = "heroku/nodejs-function"
-  uri = "docker://docker.io/heroku/buildpack-nodejs-function@sha256:63adcaeda18ea9f27b4651c8dd6b42e21bece61e1d580b9ea66b1e55b42829ee"
+  uri = "docker://docker.io/heroku/buildpack-nodejs-function@sha256:dda7e95fc7e495784f0b080888c3f79a303ff01ae43bac1d993b7e78159b6bb2"
 
 [[order]]
   [[order.group]]
     id = "heroku/nodejs-function"
-    version = "2.6.5"
+    version = "2.6.6"
 
 [[order]]
   [[order.group]]