Merge dependencies jobs

GitHub disables scheduled jobs if there hasn't been activity on the
repository for the last 60 days. This is likely to happen a lot here
since we will probably only update it after breaking ruma releases that
should happen every 6 months or so, so we remove the schedule job.

Since both jobs are now always running with the same conditions, we can
just merge them.

Author: zecakeh

.github/workflows/deps.yml

@@ -5,32 +5,16 @@ env:
   CARGO_REGISTRIES_CRATES_IO_PROTOCOL: sparse
 
 on:
-  schedule:
-    # every monday at 4AM (UTC?)
-    - cron: '0 4 * * 1'
   push:
     branches: [main]
   pull_request:
     branches: [main]
 
 jobs:
-  bans-licenses-sources:
-    name: Bans, Licenses, Sources
+  cargo-deny:
+    name: Bans, Licenses, Sources, Advisories
     runs-on: ubuntu-latest
-    if: github.event.name != 'schedule'
 
     steps:
       - uses: actions/checkout@v4
       - uses: EmbarkStudios/cargo-deny-action@v2
-        with:
-          command: check bans licenses sources
-
-  advisories:
-    name: Advisories
-    runs-on: ubuntu-latest
-
-    steps:
-      - uses: actions/checkout@v4
-      - uses: EmbarkStudios/cargo-deny-action@v2
-        with:
-          command: check advisories