Update technote-space/get-diff-action requirement to v4.0.5 (mdn#214)

* Update technote-space/get-diff-action requirement to v4.0.5

Updates the requirements on [technote-space/get-diff-action](https://github.com/technote-space/get-diff-action) to permit the latest version.
- [Release notes](https://github.com/technote-space/get-diff-action/releases)
- [Changelog](https://github.com/technote-space/get-diff-action/blob/master/.releasegarc)
- [Commits](https://github.com/technote-space/get-diff-action/commits/c665968632c16639857c89c942d3e3369c3061f1)

Signed-off-by: dependabot[bot] <[email protected]>

* update for compatibility with git-diff-action@v4

* skip following steps if no diff

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: rjohnson <[email protected]>

.github/workflows/pr-build.yml

@@ -26,16 +26,18 @@ jobs:
     steps:
       - uses: actions/checkout@v2
 
-      - uses: technote-space/[email protected].2
+      - uses: technote-space/[email protected].5
         with:
           PATTERNS: files/**/*.html
 
       - name: Setup Node.js environment
+        if: env.GIT_DIFF
         uses: actions/[email protected]
         with:
           node-version: "12"
 
       - name: Cache node_modules
+        if: env.GIT_DIFF
         uses: actions/[email protected]
         id: cached-node_modules
         with:
@@ -44,11 +46,12 @@ jobs:
           key: ${{ runner.os }}-${{ hashFiles('**/yarn.lock') }}
 
       - name: Install all yarn packages
-        if: steps.cached-node_modules.outputs.cache-hit != 'true'
+        if: env.GIT_DIFF && steps.cached-node_modules.outputs.cache-hit != 'true'
         run: |
           yarn --frozen-lockfile
 
       - name: Build changed content
+        if: env.GIT_DIFF
         run: |
           export CONTENT_ROOT=$(pwd)/files
 

.github/workflows/pr-filecheck.yml

@@ -20,37 +20,30 @@ jobs:
     steps:
       - uses: actions/checkout@v2
 
-      - uses: technote-space/get-diff-action@v3
+      - uses: technote-space/get-diff-action@v4.0.5
         id: git_diff_content
         with:
-          SUFFIX_FILTER: |
-            .png
-            .jpeg
-            .jpg
-            .gif
-            .svg
-            .webp
-          PREFIX_FILTER: files/
+          PATTERNS: files/**/*.+(png|jpeg|jpg|gif|svg|webp)
           ABSOLUTE: true
 
       - uses: actions/checkout@v2
-        if: steps.git_diff_content.outputs.diff
+        if: env.GIT_DIFF
         with:
           repository: mdn/yari
           path: yari
 
       - name: Setup Node.js environment
-        if: steps.git_diff_content.outputs.diff
+        if: env.GIT_DIFF
         uses: actions/[email protected]
         with:
           node-version: "12"
 
       - name: Get yarn cache directory path
-        if: steps.git_diff_content.outputs.diff
+        if: env.GIT_DIFF
         id: yarn-cache-dir-path
         run: echo "::set-output name=dir::$(yarn cache dir)"
       - uses: actions/[email protected]
-        if: steps.git_diff_content.outputs.diff
+        if: env.GIT_DIFF
         id: yarn-cache # use this to check for `cache-hit` (`steps.yarn-cache.outputs.cache-hit != 'true'`)
         with:
           path: ${{ steps.yarn-cache-dir-path.outputs.dir }}
@@ -59,13 +52,13 @@ jobs:
             ${{ runner.os }}-yarn-
 
       - name: Install all yarn packages
-        if: steps.git_diff_content.outputs.diff
+        if: env.GIT_DIFF
         run: |
           cd yari
           yarn --frozen-lockfile
 
       - name: Check changed files
-        if: steps.git_diff_content.outputs.diff
+        if: env.GIT_DIFF
         run: |
           export CONTENT_ROOT=$(pwd)/files
           # Need to run from the yari we've cleanly cloned.