fix(input.redis_sentinel): fix sentinel and replica stats gathering

[spideyfusion]

Required for all PRs

• Updated associated README.md.
• Wrote appropriate unit tests.
• Pull request title or commits are in conventional commit format

resolves #12152

---

I improved the integration test by making sure the plugin gets Initialized and talks to an actual Redis Sentinel instance.

[powersj]

Thank you for revamping this! One comment in line. Ideally you would continue to use the testutil.Container function, so I have on place to change things when testcontainers breaks backwards comparability again. However, I think this should be ok.

[powersj]

Can you also have this wait for the log message "Ready to accept connections" as well? I like to see both a port + log. Similar to what you already do for the sentinels.

[spideyfusion]

@powersj Done. I added the additional wait condition in 79c95e8.

[spideyfusion]

Thank you for revamping this! One comment in line. Ideally you would continue to use the testutil.Container function, so I have on place to change things when testcontainers breaks backwards comparability again. However, I think this should be ok.

I added the wrapper functions in order to gain readability as I felt things were getting a bit hectic with bootstrapping three containers for this test case.

[telegraf-tiger]

Download PR build artifacts for linux_amd64.tar.gz, darwin_amd64.tar.gz, and windows_amd64.zip.
Downloads for additional architectures and packages are available below.

👍 This pull request doesn't change the Telegraf binary size

📦 Click here to get additional PR build artifacts

Artifact URLs

DEB	RPM	TAR GZ	ZIP
amd64.deb	aarch64.rpm	darwin_amd64.tar.gz	windows_amd64.zip
arm64.deb	armel.rpm	darwin_arm64.tar.gz	windows_arm64.zip
armel.deb	armv6hl.rpm	freebsd_amd64.tar.gz	windows_i386.zip
armhf.deb	i386.rpm	freebsd_armv7.tar.gz
i386.deb	ppc64le.rpm	freebsd_i386.tar.gz
mips.deb	riscv64.rpm	linux_amd64.tar.gz
mipsel.deb	s390x.rpm	linux_arm64.tar.gz
ppc64el.deb	x86_64.rpm	linux_armel.tar.gz
riscv64.deb		linux_armhf.tar.gz
s390x.deb		linux_i386.tar.gz
		linux_mips.tar.gz
		linux_mipsel.tar.gz
		linux_ppc64le.tar.gz
		linux_riscv64.tar.gz
		linux_s390x.tar.gz
		static_linux_amd64.tar.gz

[srebhan]

Looks good to me. Thanks for the fix @spideyfusion!