CI: skip smatch, zloop, and zfs-arm for documentation-only changes

Follow-up to #18518, which skipped the qemu matrix on doc-only PRs.
zloop, zfs-arm, and smatch are irrelevant to doc-only changes.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Tony Hutter <hutter2@llnl.gov>
Signed-off-by: Christos Longros <chris.longros@gmail.com>
Closes #18601

.github/workflows/smatch.yml

@@ -3,6 +3,14 @@ name: smatch
 on:
   push:
   pull_request:
+    paths-ignore:
+      - 'man/**'
+      - '**.md'
+      - 'AUTHORS'
+      - 'COPYRIGHT'
+      - 'LICENSE'
+      - 'NOTICE'
+      - '.gitignore'
 
 concurrency:
   group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}

.github/workflows/zfs-arm.yml

@@ -3,6 +3,14 @@ name: zfs-arm
 on:
   push:
   pull_request:
+    paths-ignore:
+      - 'man/**'
+      - '**.md'
+      - 'AUTHORS'
+      - 'COPYRIGHT'
+      - 'LICENSE'
+      - 'NOTICE'
+      - '.gitignore'
   workflow_dispatch:
     inputs:
       gcc_ver:

.github/workflows/zloop.yml

@@ -3,6 +3,14 @@ name: zloop
 on:
   push:
   pull_request:
+    paths-ignore:
+      - 'man/**'
+      - '**.md'
+      - 'AUTHORS'
+      - 'COPYRIGHT'
+      - 'LICENSE'
+      - 'NOTICE'
+      - '.gitignore'
 
 concurrency:
   group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}