fix: go-ipfs docs generation

dependabot was updating dependency, which means out automation
from .github/workflows/update-on-new-ipfs-tag.yml would not run.

this disables dependabot for tools/http-api-docs/go.mod,
making sure our generator does not get broken silently

.github/dependabot.yml

@@ -13,3 +13,8 @@ updates:
       include: 'scope'
     labels:
       - 'dependencies'
+  - package-ecosystem: 'gomod'
+    directory: 'tools/http-api-docs/' # Location of go package manifests
+    open-pull-requests-limit: 0 # Disable dependabot for go deps, we want them rock solid
+    ignore:
+      dependency-name: "go-ipfs" # explicit ignore just in case, because this is handled by  .github/workflows/update-on-new-ipfs-tag.yml