Run clang-format and enable CI check for it (#755)

* pre-commit: Update and enable clang-format check

There is newer version from clang-format so use that. We do not yet want
18 as that is little bit too new.

* Format some thing by hand which clang-format "breaks"

Clang-format will format some things little bit off in some cases.
Format some things by hand so we get cleaner end result.

* Run clang-format with

```
pre-commit run --all-files clang-format
```

We have already in previously checked places where clang-format does not
make good format and ignored those (hopefully most of the things).

---------

Co-authored-by: Kari Argillander <kari.argillander@fidelix.com>

apps/mstpcrc/main.c

@@ -135,7 +135,8 @@ static void filename_create(char *filename, size_t filesize)
     if (filename) {
         my_time = time(NULL);
         today = localtime(&my_time);
-        snprintf(filename, filesize, "mstp_%04d%02d%02d%02d%02d%02d.cap",
+        snprintf(
+            filename, filesize, "mstp_%04d%02d%02d%02d%02d%02d.cap",
             1900 + today->tm_year, 1 + today->tm_mon, today->tm_mday,
             today->tm_hour, today->tm_min, today->tm_sec);
     }
@@ -165,7 +166,8 @@ static void write_global_header(const char *filename)
         fflush(pFile);
         fprintf(stdout, "mstpcap: saving capture to %s\n", filename);
     } else {
-        fprintf(stderr, "mstpcap[header]: failed to open %s: %s\n", filename,
+        fprintf(
+            stderr, "mstpcap[header]: failed to open %s: %s\n", filename,
             strerror(errno));
     }
 }
@@ -189,7 +191,8 @@ static void write_received_packet(uint8_t *buffer, unsigned length)
         (void)fwrite(&orig_len, sizeof(orig_len), 1, pFile);
         (void)fwrite(buffer, length, 1, pFile);
     } else {
-        fprintf(stderr, "mstpcrc[packet]: failed to open %s: %s\n",
+        fprintf(
+            stderr, "mstpcrc[packet]: failed to open %s: %s\n",
             Capture_Filename, strerror(errno));
     }
 }