fix(ci): update reusable workflow pins to @892497fe + remove excessive job permissions (#37)

Fix for hyperpolymath/standards#426: Updates reusable workflow pins and
removes Bug B permissions

---------

Co-authored-by: Mistral Vibe <vibe@mistral.ai>

Author: hyperpolymath

.github/workflows/mirror.yml

@@ -11,5 +11,5 @@ permissions:
   contents: read
 jobs:
   mirror:
-    uses: hyperpolymath/standards/.github/workflows/mirror-reusable.yml@09e7023d24682621bea4e11965a1ef5e87d86c3b
+    uses: hyperpolymath/standards/.github/workflows/mirror-reusable.yml@892497fe373744874316710966b81ae6f0ea9e66
     secrets: inherit

.github/workflows/secret-scanner.yml

@@ -17,9 +17,5 @@ permissions:
 # .github/workflows/README.adoc.
 jobs:
   scan:
-    permissions:
-      contents: read
-      pull-requests: write
-      actions: read
-    uses: hyperpolymath/standards/.github/workflows/secret-scanner-reusable.yml@09e7023d24682621bea4e11965a1ef5e87d86c3b
+    uses: hyperpolymath/standards/.github/workflows/secret-scanner-reusable.yml@892497fe373744874316710966b81ae6f0ea9e66
     secrets: inherit