fix bug for solaris.

dnsapi/deploy: remove POSIX character classes from sed/grep patterns

Solaris /usr/bin/sed and /usr/bin/grep parse [[:space:]] etc. as a
literal bracket set and silently mis-match. Replace with [ ]* for
JSON matching, a printf-tab bracket for user-input trimming, and
[0-9] for digits; also drop GNU-only sed -r/-E in rage4, selfhost
and selectel, and reuse _strip_blank_lines in byteplus_alb.

.github/workflows/vtag.yml

@@ -0,0 +1,32 @@
+name: Mirror version tag
+
+# Historical release tags are plain version numbers ("3.1.3") and cannot be
+# renamed. When a plain version tag is pushed (including the tag created by
+# publishing a GitHub release), mirror it as a "v"-prefixed tag ("v3.1.3")
+# pointing to the same object, so both forms exist.
+# No retrigger loop: the tag filter never matches a "v"-prefixed tag, and
+# refs created with GITHUB_TOKEN do not fire workflows anyway.
+
+on:
+  push:
+    tags:
+      - '[0-9]*'
+
+permissions:
+  contents: write
+
+jobs:
+  vtag:
+    if: github.repository == 'acmesh-official/acme.sh'
+    runs-on: ubuntu-latest
+    steps:
+      - name: Create the v-prefixed tag
+        env:
+          GH_TOKEN: ${{ github.token }}
+        run: |
+          if gh api "repos/${{ github.repository }}/git/ref/tags/v${{ github.ref_name }}" >/dev/null 2>&1; then
+            echo "Tag v${{ github.ref_name }} already exists, nothing to do."
+            exit 0
+          fi
+          gh api "repos/${{ github.repository }}/git/refs" -f ref="refs/tags/v${{ github.ref_name }}" -f sha="${{ github.sha }}"
+          echo "Created tag v${{ github.ref_name }} -> ${{ github.sha }}"