Disable hard links in build workflows

electron-builder has some logic that uses hard links instead of copies
on macOS and Linux, but only in CI by default
(see node_modules/builder-util/out/fs.js -> _isUseHardLink)
which then causes errors related to files already existing.

Anyways, the performance of a link over a copy is unimportant to our build workflows,
so we'll just force real copies so it actually works.

.github/workflows/build.yml

@@ -32,6 +32,10 @@ jobs:
     - name: Package macOS
       if: runner.os == 'macOS'
       run: node release-automation/build.js --mac
+      env:
+        USE_HARD_LINKS: "false"
     - name: Package Linux
       if: runner.os == 'Linux'
       run: node release-automation/build.js --debian --tarball --appimage
+      env:
+        USE_HARD_LINKS: "false"

.github/workflows/release.yml

@@ -50,6 +50,7 @@ jobs:
       run: node release-automation/build.js --production --mac
       env:
         GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        USE_HARD_LINKS: "false"
         APPLE_ID_USERNAME: ${{ secrets.APPLE_ID_USERNAME }}
         APPLE_ID_PASSWORD: ${{ secrets.APPLE_ID_PASSWORD }}
         APPLE_TEAM_ID: ${{ secrets.APPLE_TEAM_ID }}
@@ -60,3 +61,4 @@ jobs:
       run: node release-automation/build.js --production --debian --tarball --appimage
       env:
         GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        USE_HARD_LINKS: "false"