chore(deps): update module prometheus/procfs to v0.0.8

[tahriabd]

This PR contains the following updates:

Package	Type	Update	Change
github.com/prometheus/procfs	require	patch	v0.0.0-20181204211112-1dc9a6cbc91a -> v0.0.8

---

Release Notes

prometheus/procfs

v0.0.8

Compare Source

• support for /proc/net/sockstat{,6} via FS.Sockstat and FS.Sockstat6: #​237
• internal linting and cleanup

v0.0.7

Compare Source

• [BUGFIX] Remove debug logging from mountinfo

v0.0.6

Compare Source

• introduce new function ReadFileNoStat #​219
• Btrfs support #​223
• RAPL reader implementation #​224
• fix: RxPackets is doubled in package procfs #​226
• Update mountinfo parsing #​228
• Convert stat parser to ReadFileNoStat() #​231
• feat: Add support for meminfo #​232 * Btrfs support #​223

v0.0.5

Compare Source

v0.0.4

Compare Source

v0.0.3

Compare Source

v0.0.2

Compare Source

---

Renovate configuration

📅 Schedule: At any time (no schedule defined).

🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.

♻️ Rebasing: Whenever PR becomes conflicted, or if you modify the PR title to begin with "rebase!".

🔕 Ignore: Close this PR and you won't be reminded about this update again.

---

• If you want to rebase/retry this PR, check this box

---

This PR has been generated by Renovate Bot.