fix(ci): Limit HOME=/root fix to Firefox-capable job only

Only the browser Playwright tests job runs Firefox (via matrix project).
All other container jobs (loader tests, Remix, E2E, canary, flaky
detector) only run chromium and don't need the HOME override.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: mydea

.github/workflows/build.yml

@@ -621,8 +621,6 @@ jobs:
           - loader_tracing_replay
 
     steps:
-      - name: Fix HOME for root user
-        run: echo "HOME=/root" >> $GITHUB_ENV
       - name: Check out current commit (${{ needs.job_get_metadata.outputs.commit_label }})
         uses: actions/checkout@v6
         with:
@@ -835,8 +833,6 @@ jobs:
       matrix:
         node: [18, 20, 22, 24]
     steps:
-      - name: Fix HOME for root user
-        run: echo "HOME=/root" >> $GITHUB_ENV
       - name: Check out current commit (${{ needs.job_get_metadata.outputs.commit_label }})
         uses: actions/checkout@v6
         with:
@@ -949,8 +945,6 @@ jobs:
       fail-fast: false
       matrix: ${{ fromJson(needs.job_e2e_prepare.outputs.matrix) }}
     steps:
-      - name: Fix HOME for root user
-        run: echo "HOME=/root" >> $GITHUB_ENV
       - name: Check out current commit (${{ needs.job_get_metadata.outputs.commit_label }})
         uses: actions/checkout@v6
         with:
@@ -1077,8 +1071,6 @@ jobs:
       matrix: ${{ fromJson(needs.job_e2e_prepare.outputs.matrix-optional) }}
 
     steps:
-      - name: Fix HOME for root user
-        run: echo "HOME=/root" >> $GITHUB_ENV
       - name: Check out current commit (${{ needs.job_get_metadata.outputs.commit_label }})
         uses: actions/checkout@v6
         with:

.github/workflows/canary.yml

@@ -145,8 +145,6 @@ jobs:
             label: 'nestjs-microservices (latest)'
 
     steps:
-      - name: Fix HOME for root user
-        run: echo "HOME=/root" >> $GITHUB_ENV
       - name: Check out current commit
         uses: actions/checkout@v6
         with:

.github/workflows/flaky-test-detector.yml

@@ -51,8 +51,6 @@ jobs:
     # Also skip if PR is from master -> develop
     if: ${{ github.base_ref != 'master' && github.ref != 'refs/heads/master' }}
     steps:
-      - name: Fix HOME for root user
-        run: echo "HOME=/root" >> $GITHUB_ENV
       - name: Check out current branch
         uses: actions/checkout@v6
       - name: Set up Node