no-release(deps): update erlef/setup-beam action to v1.21.0 (#59)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/erlang.yml

@@ -26,7 +26,7 @@ jobs:
       with:
         fetch-depth: 0
         token: ${{secrets.GITHUB_TOKEN}}
-    - uses: erlef/setup-beam@e6d7c94229049569db56a7ad5a540c051a010af9 # v1.20.4
+    - uses: erlef/setup-beam@3580539ceec3dc05b0ed51e9e10b08eb7a7c2bb4 # v1.21.0
       with:
         otp-version: ${{ matrix.otp }}
         rebar3-version: '3.24'