Bump actions/upload-artifact from v2.2.2 to v2.2.3

Bumps [actions/upload-artifact](https://github.com/actions/upload-artifact) from v2.2.2 to v2.2.3.
- [Release notes](https://github.com/actions/upload-artifact/releases)
- [Commits](actions/upload-artifact@v2.2.2...ee69f02)

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

.github/workflows/flex-spring-proxy.yml

@@ -26,7 +26,7 @@ jobs:
           echo "VERSION=$VERSION" >> $GITHUB_ENV
       - run: echo $VERSION > VERSION.txt
       - name: Last opp VERSION til neste job
-        uses: actions/[email protected].2
+        uses: actions/[email protected].3
         with:
           name: VERSION.txt
           path: VERSION.txt

.github/workflows/spinnsyn-backend-mock-proxy.yml

@@ -23,7 +23,7 @@ jobs:
           echo "VERSION=$VERSION" >> $GITHUB_ENV
       - run: echo $VERSION > VERSION.txt
       - name: Last opp VERSION til neste job
-        uses: actions/[email protected].2
+        uses: actions/[email protected].3
         with:
           name: VERSION.txt
           path: VERSION.txt

.github/workflows/spinnsyn-backend-veileder-proxy.yml

@@ -23,7 +23,7 @@ jobs:
           echo "VERSION=$VERSION" >> $GITHUB_ENV
       - run: echo $VERSION > VERSION.txt
       - name: Last opp VERSION til neste job
-        uses: actions/[email protected].2
+        uses: actions/[email protected].3
         with:
           name: VERSION.txt
           path: VERSION.txt