ci: pin secure OTP runtime and isolate Burrito lag

.github/workflows/ci.yml

@@ -21,7 +21,7 @@ jobs:
           fetch-depth: 0
       - uses: erlef/setup-beam@8251c48667b97e88a0a24ec512f5b72a039fcea7 # v1
         with:
-          otp-version: "29.0"
+          otp-version: "29.0.6"
           elixir-version: "1.20.0-rc.6"
           gleam-version: "1.17.0"
       - uses: actions/setup-node@48b55a011bda9f5d6aeb4c2d9c7362e8dae4041e # v6
@@ -33,9 +33,9 @@ jobs:
       - uses: actions/cache@0057852bfaa89a56745cba8c7296529d2fc39830 # v4.3.0
         with:
           path: app/_build/assay
-          key: ${{ runner.os }}-beam-otp29-elixir120-gleam117-assay-${{ hashFiles('app/mix.lock') }}
+          key: ${{ runner.os }}-beam-otp29.0.6-elixir120-gleam117-assay-${{ hashFiles('app/mix.lock') }}
           restore-keys: |
-            ${{ runner.os }}-beam-otp29-elixir120-gleam117-assay-
+            ${{ runner.os }}-beam-otp29.0.6-elixir120-gleam117-assay-
       - name: Check Gleam formatting
         run: gleam format --check src
         working-directory: app
@@ -81,7 +81,10 @@ jobs:
           persist-credentials: false
       - uses: erlef/setup-beam@8251c48667b97e88a0a24ec512f5b72a039fcea7 # v1
         with:
-          otp-version: "29.0"
+          # Temporary non-publishing compatibility smoke: Burrito's ERTS mirror
+          # does not yet carry OTP 29.0.6. Release builds remain pinned to 29.0.6.
+          # Tracked by https://github.com/bglusman/wardwright/issues/83.
+          otp-version: "29.0.5"
           elixir-version: "1.20.0-rc.6"
           gleam-version: "1.17.0"
       - uses: mlugg/setup-zig@d1434d08867e3ee9daa34448df10607b98908d29 # v2.0.5

.github/workflows/wardwright-release.yml

@@ -47,7 +47,7 @@ jobs:
         uses: erlef/setup-beam@fc68ffb90438ef2936bbb3251622353b3dcb2f93
         with:
           elixir-version: "1.20.0-rc.6"
-          otp-version: "29.0"
+          otp-version: "29.0.6"
           gleam-version: "1.17.0"
 
       - name: Set up Zig on macOS
@@ -108,7 +108,7 @@ jobs:
         uses: erlef/setup-beam@fc68ffb90438ef2936bbb3251622353b3dcb2f93
         with:
           elixir-version: "1.20.0-rc.6"
-          otp-version: "29.0"
+          otp-version: "29.0.6"
           gleam-version: "1.17.0"
 
       - name: Download all artifacts
@@ -144,7 +144,7 @@ jobs:
         uses: erlef/setup-beam@fc68ffb90438ef2936bbb3251622353b3dcb2f93
         with:
           elixir-version: "1.20.0-rc.6"
-          otp-version: "29.0"
+          otp-version: "29.0.6"
           gleam-version: "1.17.0"
 
       - name: Install dependencies

.tool-versions

@@ -1,4 +1,4 @@
-erlang 29.0
+erlang 29.0.6
 elixir 1.20.0-rc.6-otp-29
 gleam 1.17.0
 nodejs 22.22.3

app/mix.exs

@@ -145,7 +145,7 @@ defmodule Wardwright.MixProject do
         ],
         ci: [
           elixir_version: "1.20.0-rc.6",
-          otp_version: "29.0"
+          otp_version: "29.0.6"
         ],
         prerelease_pattern: ~r/-(rc|beta|alpha|dev)(\.|$)/
       ]

mise.toml

@@ -1,5 +1,5 @@
 [tools]
-erlang = "29.0"
+erlang = "29.0.6"
 elixir = "1.20.0-rc.6-otp-29"
 gleam = "1.17.0"
 node = "22.22.3"