github transfer test workflow: test HTTP over TLS too, rename

.github/workflows/test-transfer-udp-http.yml

@@ -1,18 +0,0 @@
-name: "Test UDP and HTTP file transfer"
-
-on:
-  push:
-    branches: [ master ]
-  pull_request:
-    branches: [ master ]
-
-jobs:
-  test-transfer-http:
-    runs-on: ubuntu-latest
-    name: Test BitTorrent file transfer over UDP and HTTP
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v2
-      - name: Test file transfers
-        uses: ./.github/actions/test-transfer-udp-http
-        id: test_transfer_udp_http