Add emoji to GitHub Actions step names for consistency

Several workflows were missing the emoji-prefixed step naming used
elsewhere (e.g. nightly-build.yml, build-submit-ios/android.yml), and
a couple of files that already used emoji had a few gaps. Fills those
in across all workflow files. Job-level `name:` fields are left
untouched since some are pinned as required branch-protection check
names.

.github/workflows/sync-internal.yaml

@@ -13,14 +13,14 @@ jobs:
     runs-on: ubuntu-latest
     if: github.repository == 'bluesky-social/social-app'
     steps:
-      - name: Checkout public repo
+      - name: ⬇️ Checkout public repo
         uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
         with:
           fetch-depth: 0
           # Don't persist the checkout auth header; the push below authenticates
           # with the app token embedded in the remote URL instead
           persist-credentials: false
-      - name: Generate GitHub App Token
+      - name: 🔑 Generate GitHub App Token
         id: app-token
         uses: actions/create-github-app-token@bcd2ba49218906704ab6c1aa796996da409d3eb1 # v3.2.0
         with:
@@ -33,7 +33,7 @@ jobs:
           # .github/workflows/, which GitHub refuses to push without it.
           permission-contents: write
           permission-workflows: write
-      - name: Push to internal repo
+      - name: 🚀 Push to internal repo
         env:
           TOKEN: ${{ steps.app-token.outputs.token }}
         run: |