Moved PB Timestamp index to 10

[s1fr0]

This is a fix to maintain retro-compatibility with timestamp protobuffer fields.

Timestamps now have Timestamp type (currently an alias for int64) and nanoseconds resolution. Their new protobuffer index is 10.

Previous versions had timestamps as float with subseconds contained in the fractional part and protobuffer index 4.

This PR is related to vacp2p/rfc#491, #842 and vacp2p/rfc#483.

[jm-clius]

Thanks! This will buy some time for other clients to implement the new WakuMessage proto without breaking.

[jm-clius]

Thanks!

[status-im-auto]

Jenkins Builds

❔	Commit	#️⃣	Finished (UTC)	Duration	Platform	Result
❌	09bfbd4	#1	2022-02-22 11:27:42	~19 min	linux	📄log
❌	09bfbd4	#2	2022-02-22 11:31:13	~2 min	linux	📄log
✔️	09bfbd4	#1	2022-02-22 11:37:03	~28 min	macos	📦bin
✔️	09bfbd4	#1	2022-02-22 11:45:57	~37 min	windows	📦exe
✔️	09bfbd4	#3	2022-02-22 13:40:33	~15 min	linux	📦bin
✔️	cd11a74	#4	2022-02-22 22:58:02	~15 min	linux	📦bin
✔️	cd11a74	#2	2022-02-22 23:05:24	~22 min	macos	📦bin
✔️	cd11a74	#2	2022-02-22 23:12:39	~29 min	windows	📦exe

[staheri14]

Looks good to me, what triggered this change? what was the issue with index 4?

Update: found the answer in

Thanks! This will buy some time for other clients to implement the new WakuMessage proto without breaking.

Are we going to bring it back to index 4 once the timestamp type and resolution are updated by other clients?