feat: add timezone setup to build workflows to fix deprecated attribute linter

The deprecated attribute linter was failing with timezone database errors:
'unable to locate share/zoneinfo in the local timezone database at /etc/localtime'

This adds the szenius/set-timezone@v2.0 action to all build workflows
to ensure proper timezone configuration in CI environments.

Author: kim-em

.github/build.in.yml

@@ -62,6 +62,10 @@ jobs:
               : # Do nothing on failure, but suppress errors
           fi
 
+      - name: Setup timezone
+        # This is needed so we can use Lean's date library to lint deprecated attributes
+        uses: szenius/set-timezone@v2.0
+
       # The Hoskinson runners may not have jq installed, so do that now.
       - name: 'Setup jq'
         uses: dcarbone/install-jq-action@f0e10f46ff84f4d32178b4b76e1ef180b16f82c3 # v3.1.1

.github/workflows/bors.yml

@@ -72,6 +72,10 @@ jobs:
               : # Do nothing on failure, but suppress errors
           fi
 
+      - name: Setup timezone
+        # This is needed so we can use Lean's date library to lint deprecated attributes
+        uses: szenius/set-timezone@v2.0
+
       # The Hoskinson runners may not have jq installed, so do that now.
       - name: 'Setup jq'
         uses: dcarbone/install-jq-action@f0e10f46ff84f4d32178b4b76e1ef180b16f82c3 # v3.1.1

.github/workflows/build.yml

@@ -79,6 +79,10 @@ jobs:
               : # Do nothing on failure, but suppress errors
           fi
 
+      - name: Setup timezone
+        # This is needed so we can use Lean's date library to lint deprecated attributes
+        uses: szenius/set-timezone@v2.0
+
       # The Hoskinson runners may not have jq installed, so do that now.
       - name: 'Setup jq'
         uses: dcarbone/install-jq-action@f0e10f46ff84f4d32178b4b76e1ef180b16f82c3 # v3.1.1

.github/workflows/build_fork.yml

@@ -76,6 +76,10 @@ jobs:
               : # Do nothing on failure, but suppress errors
           fi
 
+      - name: Setup timezone
+        # This is needed so we can use Lean's date library to lint deprecated attributes
+        uses: szenius/set-timezone@v2.0
+
       # The Hoskinson runners may not have jq installed, so do that now.
       - name: 'Setup jq'
         uses: dcarbone/install-jq-action@f0e10f46ff84f4d32178b4b76e1ef180b16f82c3 # v3.1.1