Bump CI tools versions

- cppcheck 2.13.0 -> 2.15.0
- astyle 3.4.12 -> 3.4.14

Release notes
- https://github.com/danmar/cppcheck/releases/tag/2.14.0
- https://github.com/danmar/cppcheck/releases/tag/2.14.1
- https://github.com/danmar/cppcheck/releases/tag/2.14.2
- https://github.com/danmar/cppcheck/releases/tag/2.15.0
- https://astyle.sourceforge.net/notes.html

Later versions of astyle up to 3.5.1 have (currently) a problem with
align-pointer=name which confuses multiplication with a
pointer-dereference. See https://sourceforge.net/p/astyle/bugs/572/

.github/workflows/build.yml

@@ -180,7 +180,7 @@ jobs:
  CC: gcc
  # This is required to use a version of cppcheck other than that
  # supplied with the operating system
- CPPCHECK_VER: "2.13.0"
+ CPPCHECK_VER: "2.15.0"
  CPPCHECK_REPO: https://github.com/danmar/cppcheck.git
  steps:
  # Set steps.os.outputs.image to the specific OS (e.g. 'ubuntu20')
@@ -209,7 +209,7 @@ jobs:
  CC: gcc
  # This is required to use a version of astyle other than that
  # supplied with the operating system
- ASTYLE_VER: 3.4.12
+ ASTYLE_VER: 3.4.14
  ASTYLE_REPO: https://gitlab.com/saalen/astyle.git
  steps:
  # Set steps.os.outputs.image to the specific OS (e.g. 'ubuntu20')