chore: bump crazy-max/ghaction-import-gpg from 5 to 6

Bumps [crazy-max/ghaction-import-gpg](https://github.com/crazy-max/ghaction-import-gpg) from 5 to 6.
- [Release notes](https://github.com/crazy-max/ghaction-import-gpg/releases)
- [Commits](crazy-max/ghaction-import-gpg@v5...v6)

---
updated-dependencies:
- dependency-name: crazy-max/ghaction-import-gpg
  dependency-version: '6'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

.github/workflows/release.yml

@@ -31,7 +31,7 @@ jobs:
         with:
           ref: development
       - name: "Import GPG Key"
-        uses: crazy-max/ghaction-import-gpg@v5
+        uses: crazy-max/ghaction-import-gpg@v6
         with:
           gpg_private_key: ${{ secrets.GPG_PRIVATE_KEY }}
           passphrase: ${{ secrets.GPG_PASSPHRASE }}
@@ -62,7 +62,7 @@ jobs:
           fetch-depth: 0
           ref: main
       - name: "Import GPG Key"
-        uses: crazy-max/ghaction-import-gpg@v5
+        uses: crazy-max/ghaction-import-gpg@v6
         with:
           gpg_private_key: ${{ secrets.GPG_PRIVATE_KEY }}
           passphrase: ${{ secrets.GPG_PASSPHRASE }}

.github/workflows/sync-higgs-shop-data-plan.yml

@@ -38,7 +38,7 @@ jobs:
             path: core-sdk-samples/higgs-shop-sample-app/dataplans
 
         - name: "Import GPG Key"
-          uses: crazy-max/ghaction-import-gpg@v5
+          uses: crazy-max/ghaction-import-gpg@v6
           with:
             gpg_private_key: ${{ secrets.GPG_PRIVATE_KEY }}
             passphrase: ${{ secrets.GPG_PASSPHRASE }}