ci(nix): ignore more paths

Signed-off-by: Seth Flynn <getchoo@tuta.io>
(cherry picked from commit 1a5a162727)

.github/workflows/nix.yml

@@ -5,20 +5,27 @@ on:
     tags:
       - "*"
     paths-ignore:
+      - ".github/**"
+      - "!.github/workflows/nix.yml"
+      - "flatpak/"
+      - "scripts/"
+
+      - ".git*"
+      - ".envrc"
       - "**.md"
-      - "**/LICENSE"
-      - ".github/ISSUE_TEMPLATE/**"
-      - ".markdownlint**"
-      - "flatpak/**"
-    tags:
-      - "*"
+      - "!COPYING.md"
+      - "renovate.json"
   pull_request_target:
     paths-ignore:
+      - ".github/**"
+      - "flatpak/"
+      - "scripts/"
+
+      - ".git*"
+      - ".envrc"
       - "**.md"
-      - "**/LICENSE"
-      - ".github/ISSUE_TEMPLATE/**"
-      - ".markdownlint**"
-      - "flatpak/**"
+      - "!COPYING.md"
+      - "renovate.json"
   workflow_dispatch:
 
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