[elpa] externals/bnf-mode 5e225d762e 3/5: Amend build & test matrix

[ELPA Syncer]

branch: externals/bnf-mode
commit 5e225d762e66fb16af562beaeffd7c32d8b5a001
Author: Serghei Iakovlev <egrep@protonmail.ch>
Commit: Serghei Iakovlev <git@serghei.pl>

    Amend build & test matrix
---
 .github/workflows/build.yml | 20 +++++++++++++++++---
 1 file changed, 17 insertions(+), 3 deletions(-)

diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index f536341b6b..302cfaf86f 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -19,9 +19,10 @@ name: build
 
 on:
   push:
-    paths-ignore:
-      - '**.md'
-      - '**.txt'
+    branches:
+      # This is to make sure that there is no broken CI on
+      # the default branch.
+      - master
   pull_request:
     branches:
       - master
@@ -36,16 +37,29 @@ jobs:
 
       matrix:
         emacs_version:
+          # 2016-09 - 2017-09
           - '25.1'
           - '25.2'
           - '25.3'
+
+          # 2018-05 - 2019-08
           - '26.1'
           - '26.2'
           - '26.3'
+
+          # 2020-08 - 2021-03
           - '27.1'
           - '27.2'
+
+          # 2022-04 - 2022-09
           - '28.1'
           - '28.2'
+
+          # 2023-07 - 2024-06
+          - '29.1'
+          - '29.2'
+          - '29.3'
+          - '29.4'
           - snapshot
         include:
           - emacs_version: snapshot