chore: Fix powersync core version

Author: mugikhan

.github/workflows/demos.yml

@@ -44,9 +44,9 @@ jobs:
         run: flutter pub global activate melos
       - name: Install dependencies
         run: melos prepare
-      - name: Set Powersync Core Version
-        run: echo "CORE_VERSION=0.1.8" >> $GITHUB_ENV
-      - name: Download Binaries
+      - name: Set powersync core version
+        run: echo "CORE_VERSION=v0.1.8" >> $GITHUB_ENV
+      - name: Download binaries
         run: sh tool/download_binaries.sh
       - name: Run flutter tests
         run: melos test

.github/workflows/packages.yml

@@ -48,9 +48,9 @@ jobs:
         run: flutter pub global activate melos
       - name: Install dependencies and prepare project
         run: melos prepare
-      - name: Set Powersync Core Version
-        run: echo "CORE_VERSION=0.1.8" >> $GITHUB_ENV
-      - name: Download Binaries
+      - name: Set powersync core version
+        run: echo "CORE_VERSION=v0.1.8" >> $GITHUB_ENV
+      - name: Download binaries
         run: sh tool/download_binaries.sh
       - name: Run flutter tests
         run: melos test

.github/workflows/publish.yml

@@ -21,9 +21,9 @@ jobs:
           flutter-version: "3.x"
           channel: "stable"
 
-      - name: Set Powersync Core Version
-        run: echo "CORE_VERSION=0.1.8" >> $GITHUB_ENV
-      - name: Download Binaries
+      - name: Set powersync core version
+        run: echo "CORE_VERSION=v0.1.8" >> $GITHUB_ENV
+      - name: Download binaries
         run: sh tool/download_binaries.sh
       - name: Publish powersync
         run: |