Add a changelog check in CI

.github/workflows/changelog.yml

@@ -0,0 +1,17 @@
+name: Changelog check
+
+on:
+  pull_request:
+    # Run on labeled/unlabeled in addition to defaults to detect
+    # adding/removing skip-changelog labels.
+    types: [opened, reopened, labeled, unlabeled, synchronize]
+
+jobs:
+  changelog:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: dangoslen/changelog-enforcer@v3
+        with:
+          changeLogPath: CHANGELOG.md
+          skipLabels: "skip-changelog"
+          missingUpdateErrorMessage: "Please add a changelog entry in the CHANGELOG.md file."

CHANGELOG.md

@@ -21,18 +21,18 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Add `--min-chip-rev` argument to specify minimum chip revision (#525)
 - Add `serialport` feature. (#535)
 - Add support for 26 MHz bootloader for ESP32 and ESP32-C2 (#553)
+- Add CI check to verify that CHANGELOG is updated (#560)
 
 ### Fixed
 
 - Fixed printing panic backtraces when using `esp-println` and `defmt` (#496)
-- Fixed defmt parsing when data is read in parts (#503)
+- Fixed `defmt` parsing when data is read in parts (#503)
 - Use partition table instead of hard-coded values for the location of partitions (#516)
 - Fixed a missed `flush` call that may be causing communication errors (#521)
 
 ### Changed
 - Created `FlashData` and `FlashSettings` structs to reduce number of input arguments in some functions (#512)
-
-- espflash will now exit with an error if `defmt` is selected but not usable (#524)
+- `espflash` will now exit with an error if `defmt` is selected but not usable (#524)
 
 ### Removed