chore(ci): persist updates to core/package.json in stencil nightly build (#30937)

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issue. -->

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etc). Submit multiple pull requests if needed. -->

## What is the current behavior?
<!-- Please describe the current behavior that you are modifying. -->
The Stencil Nightly Build workflow tests Ionic with the latest nightly
build of Stencil. The first step of the workflow updates Stencil, builds
Ionic core, and uploads the build files. Later steps download these
build files. Core's updated package.json is not uploaded with the build
files, so later steps are installing an old Stencil version, leading to
conflicts.

## What is the new behavior?
<!-- Please describe the behavior or changes that are being added by
this PR. -->
Add core's package.json to the artifact upload. This will make all later
steps use the correct Stencil version.

Seven of the tests run `git diff` to ensure tests did not cause changes
in tracked files. Core's package.json would register as a change, so a
new step reverts package.json before running `git diff`.

## Does this introduce a breaking change?

- [ ] Yes
- [X] No

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1. Describe the impact and migration path for existing applications
below.
  2. Update the BREAKING.md file with the breaking change.
3. Add "BREAKING CHANGE: [...]" to the commit description when merging.
See
https://github.com/ionic-team/ionic-framework/blob/main/docs/CONTRIBUTING.md#footer
for more information.
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## Other information

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screenshots of how the component looks before and after the change. -->

Author: OS-jacobbell

.github/workflows/actions/build-angular/action.yml

@@ -27,6 +27,10 @@ runs:
       run: npm run build
       shell: bash
       working-directory: ./packages/angular
+    - name: Clean core package.json
+      run: git checkout ./package.json
+      shell: bash
+      working-directory: ./core
     - name: 🔍 Check Diff
       run: git diff --exit-code
       shell: bash

.github/workflows/actions/build-core-stencil-prerelease/action.yml

@@ -29,4 +29,4 @@ runs:
       with:
         name: ionic-core
         output: core/CoreBuild.zip
-        paths: core/dist core/components core/css core/hydrate core/loader core/src/components.d.ts
+        paths: core/dist core/components core/css core/hydrate core/loader core/src/components.d.ts core/package.json

.github/workflows/actions/build-react/action.yml

@@ -31,6 +31,10 @@ runs:
       run: npm run test.spec
       shell: bash
       working-directory: ./packages/react
+    - name: Clean core package.json
+      run: git checkout ./package.json
+      shell: bash
+      working-directory: ./core
     - name: 🔍 Check Diff
       run: git diff --exit-code
       shell: bash

.github/workflows/actions/build-vue/action.yml

@@ -27,6 +27,10 @@ runs:
       run: npm run build
       shell: bash
       working-directory: ./packages/vue
+    - name: Clean core package.json
+      run: git checkout ./package.json
+      shell: bash
+      working-directory: ./core
     - name: 🔍 Check Diff
       run: git diff --exit-code
       shell: bash

.github/workflows/actions/test-angular-e2e/action.yml

@@ -17,7 +17,7 @@ runs:
     - uses: ./.github/workflows/actions/download-archive
       with:
         name: ionic-angular
-        path: ./angular
+        path: ./packages/angular
         filename: AngularBuild.zip
     - uses: ./.github/workflows/actions/download-archive
       with:

.github/workflows/actions/test-core-clean-build/action.yml

@@ -12,6 +12,10 @@ runs:
         name: ionic-core
         path: ./core
         filename: CoreBuild.zip
+    - name: Clean core package.json
+      run: git checkout ./package.json
+      shell: bash
+      working-directory: ./core
     - name: 🔍 Check Diff
       run: |
         git diff --exit-code || {

.github/workflows/actions/test-core-lint/action.yml

@@ -10,6 +10,10 @@ runs:
       run: npm ci
       working-directory: ./core
       shell: bash
+    - name: Clean core package.json
+      run: git checkout ./package.json
+      shell: bash
+      working-directory: ./core
     - name: 🖌️ Lint
       run: npm run lint
       shell: bash

.github/workflows/actions/test-core-screenshot/action.yml

@@ -30,6 +30,10 @@ runs:
       run: npm run test.e2e.docker.ci ${{ inputs.component }} -- --shard=${{ inputs.shard }}/${{ inputs.totalShards }}
       shell: bash
       working-directory: ./core
+    - name: Clean core package.json
+      run: git checkout ./package.json
+      shell: bash
+      working-directory: ./core
     - name: Test and Update
       id: test-and-update
       if: inputs.update == 'true'

.github/workflows/actions/update-reference-screenshots/action.yml

@@ -21,6 +21,10 @@ runs:
         find . -type f -name 'UpdatedScreenshots-*.zip' -exec unzip -q -o -d ../ {} \;
       shell: bash
       working-directory: ./artifacts
+    - name: Clean core package.json
+      run: git checkout ./package.json
+      shell: bash
+      working-directory: ./core
     - name: 📸 Push Screenshots
       # Configure user as Ionitron
       # and push only the changed .png snapshots