ci: Setup dialyzer testing

.forgejo/workflows/default.yml

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+---
+on:
+  - push
+
+jobs:
+  test:
+    runs-on: docker
+    steps:
+      - uses: actions/checkout@v4
+      - uses: https://github.com/jdx/mise-action@v2
+
+      - name: Install and Compile Deps
+        run: |
+          mix local.hex --force
+          mix local.rebar --force
+          mix deps.get
+          mix deps.compile
+
+      - name: Run Dialyzer
+        run: mix dialyzer

.mise.toml

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+[tools]
+erlang = "26.2"
+elixir = "1.14"

.tool-versions

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-elixir 1.15
-erlang 26