[FL-3080] fbt: PVS support (#2286)

* fbt: added firmware_pvscheck & firmware_pvs targets for *nix
* fbt: pvs support on Windows
* fbt: additional fixes & docs for PVS support
* fbt: fixes for updater env configuration
* github: reworked pvs workflow
* vscode: added PVS shortcut
* pvs: added --ignore-ccache flag
* fbt: pvs: opening web browser if there are warnings
* fbt: pvs: added browser handler for mac
* github: fixed report path for PVS
* fbt: pvs: fixed report upload path
* removed intentional PVS warning
* fixed more PVS warnings
* fixed secplus_v1 PVS warning
* fbt: added PVSNOBROWSER flag
* github: setting PVSNOBROWSER for pvs runs
* fbt: less debug output

Co-authored-by: あく <alleteam@gmail.com>

documentation/fbt.md

@@ -56,6 +56,7 @@ To run cleanup (think of `make clean`) for specified targets, add the `-c` optio
 - `get_stlink` - output serial numbers for attached STLink probes. Used for specifying an adapter with `OPENOCD_ADAPTER_SERIAL=...`.
 - `lint`, `format` - run clang-format on the C source code to check and reformat it according to the `.clang-format` specs.
 - `lint_py`, `format_py` - run [black](https://black.readthedocs.io/en/stable/index.html) on the Python source code, build system files & application manifests.
+- `firmware_pvs` - generate a PVS Studio report for the firmware. Requires PVS Studio to be availabe on your system's `PATH`.
 - `cli` - start a Flipper CLI session over USB.
 
 ### Firmware targets