dockerfile: use new syntax

Signed-off-by: Simon L. <szaimen@e.mail.de>

.github/workflows/imaginary-update.yml

@@ -19,7 +19,7 @@ jobs:
             | cut -f1 \
             | tail -1
         )"
-        sed -i "s|^ENV IMAGINARY_HASH.*$|ENV IMAGINARY_HASH $imaginary_version|" ./Containers/imaginary/Dockerfile
+        sed -i "s|^ENV IMAGINARY_HASH.*$|ENV IMAGINARY_HASH=$imaginary_version|" ./Containers/imaginary/Dockerfile
         
     - name: Create Pull Request
       uses: peter-evans/create-pull-request@v6

.github/workflows/nextcloud-update.yml

@@ -75,7 +75,7 @@ jobs:
         NC_MAJOR="$(grep "ENV NEXTCLOUD_VERSION" ./Containers/nextcloud/Dockerfile | grep -oP '[23][0-9]')"
         NCVERSION=$(curl -s -m 900 https://download.nextcloud.com/server/releases/ | sed --silent 's/.*href="nextcloud-\([^"]\+\).zip.asc".*/\1/p' | grep "$NC_MAJOR" | sort --version-sort | tail -1)
         if [ -n "$NCVERSION" ]; then
-          sed -i "s|^ENV NEXTCLOUD_VERSION.*|ENV NEXTCLOUD_VERSION $NCVERSION|" ./Containers/nextcloud/Dockerfile
+          sed -i "s|^ENV NEXTCLOUD_VERSION.*|ENV NEXTCLOUD_VERSION=$NCVERSION|" ./Containers/nextcloud/Dockerfile
         fi
 
     - name: Create Pull Request

.github/workflows/talk.yml

@@ -21,7 +21,7 @@ jobs:
             | grep -E "^v[0-9\.]+$" \
             | tail -1
         )"
-        sed -i "s|^ENV RECORDING_VERSION.*$|ENV RECORDING_VERSION $recording_version|" ./Containers/talk-recording/Dockerfile
+        sed -i "s|^ENV RECORDING_VERSION.*$|ENV RECORDING_VERSION=$recording_version|" ./Containers/talk-recording/Dockerfile
         curl -L "https://raw.githubusercontent.com/nextcloud/nextcloud-talk-recording/$recording_version/server.conf.in" -o Containers/talk-recording/recording.conf
         
         # Signaling