ci: substitute main version in upgrade pack

Release-As: 0.4.2

Author: richardapeters

.github/workflows/wc-upgrade-pack.yml

@@ -31,8 +31,8 @@ jobs:
       - run: "tar -zxvf Postmaster-*-Generic-ELF.tar.gz"
       - run: "cp -r Postmaster-*-Generic-ELF/* install/"
       - id: convert-version
-        run: 'echo "${VERSION}" | sed -e "s/v/version=/" -e "s/\(.*\)\/merge/version=\1/" >> "$GITHUB_OUTPUT"'
-      - run: 'echo "${VERSION}" | sed -e "s/v/version=/" -e "s/\(.*\)\/merge/version=\1/" >> "$GITHUB_ENV"'
+        run: 'echo "${VERSION}" | sed -e "s/v/version=/" -e "s/\(.*\)\/merge/version=\1/" -e "s/main/version=main/" >> "$GITHUB_OUTPUT"'
+      - run: 'echo "${VERSION}" | sed -e "s/v/version=/" -e "s/\(.*\)\/merge/version=\1/" -e "s/main/version=main/"  >> "$GITHUB_ENV"'
       - run: 'install/bin/postmaster.upgrade_pack_builder --app=install/bin/postmaster.postmaster_stm32f407.hex "--output=Postmaster-$version.upg"'
       - uses: actions/upload-artifact@b7c566a772e6b6bfb58ed0dc250532a479d7789f # v6.0.0
         with: