Emergengy documentation build fix

Recent CI updates bumped to the latest OTP-26 which has led to documentation
build faulures. These changes temporarily revert to OTP-25 for building docs.

Signed-off-by: Winford <winford@object.stream>

.github/workflows/build-docs.yaml

@@ -49,11 +49,11 @@ jobs:
       fail-fast: false
       ## don't add more than one OS to matrix, this is only to retrieve the full os-name for keeping cache in sync
       matrix:
-        os: [ ubuntu-24.04 ]
+        os: [ ubuntu-22.04 ]
     # The type of runner that the job will run on
     runs-on: ${{ matrix.os }}
-    # Documentation currently fails to build with OTP-27
-    container: erlang:26
+    # Documentation currently fails to build with OTP-27 and recent OTP-26.
+    container: erlang:25
 
     # Steps represent a sequence of tasks that will be executed as part of the job
     steps:

.github/workflows/publish-docs.yaml

@@ -41,7 +41,7 @@ jobs:
     strategy:
       ## don't add more than one OS to matrix, this is only to retrieve the full os-name for keeping cache in sync
       matrix:
-        os: [ ubuntu-24.04 ]
+        os: [ ubuntu-22.04 ]
     # The type of runner that the job will run on
     runs-on: ${{ matrix.os }}
 
@@ -76,7 +76,7 @@ jobs:
 
       - uses: erlef/setup-beam@v1
         with:
-          otp-version: "26"
+          otp-version: "25"
           elixir-version: "1.17"
           hexpm-mirrors: |
             https://builds.hex.pm