refactor release pipeline: TAG_TOKEN, skip-checks gate, dependabot/zizmor cleanup (#5003)

Signed-off-by: Alex Goodman <wagoodman@users.noreply.github.com>

.github/dependabot.yml

@@ -1,13 +1,4 @@
 # Dependabot configuration
-#
-# Grouping behavior (see inline comments for details):
-#   - Minor + patch updates: grouped into a single PR per ecosystem
-#   - Major version bumps: individual PR per dependency
-#   - Security updates: individual PR per dependency
-#
-# Note: "patch" refers to semver version bumps (1.2.3 -> 1.2.4), not security fixes.
-# Security updates are identified separately via GitHub's Advisory Database and
-# can be any version bump (patch, minor, or major) that fixes a known CVE.
 
 version: 2
 
@@ -30,14 +21,6 @@ updates:
       - dependency-name: "github.com/aquasecurity/go-version"
       - dependency-name: "github.com/knqyf263/go-apk-version"
       - dependency-name: "github.com/knqyf263/go-deb-version"
-    groups:
-      go-minor-patch:
-        applies-to: version-updates  # security updates get individual PRs
-        patterns:
-          - "*"
-        update-types:  # major omitted, gets individual PRs
-          - "minor"
-          - "patch"
 
   - package-ecosystem: "github-actions"
     directories:
@@ -51,11 +34,3 @@ updates:
     open-pull-requests-limit: 10
     labels:
       - "dependencies"
-    groups:
-      actions-minor-patch:
-        applies-to: version-updates  # security updates get individual PRs
-        patterns:
-          - "*"
-        update-types:  # major omitted, gets individual PRs
-          - "minor"
-          - "patch"