update google cloud output to v0.1.2

[jsirianni]

Description of Changes

Updated go.mod to build stanza with the latest Google Cloud output operator.

Please check that the PR fulfills these requirements

• Tests for the changes have been added (for bug fixes / features)
• Docs have been added / updated (for bug fixes / features)
• Add a changelog entry (for non-trivial bug fixes / features)
• CI passes

[djaglowski]

Log Files	Logs / Second	CPU Avg (%)	CPU Avg Δ (%)	Memory Avg (MB)	Memory Avg Δ (MB)
1	1000	1.586222	-0.43107998	123.08499	+1.5030975
1	5000	5.9312186	-0.034531116	132.28206	-1.5453949
1	10000	11.431363	+0.77593803	142.53569	+2.7657623
1	50000	54.535637	-0.98223114	175.40625	+1.3180237
1	100000	110.48217	-0.7100754	221.53853	-12.210388
10	100	2.3794818	+0.1725192	128.87311	+2.498108
10	500	7.3450184	+0.7241831	133.29054	-2.969284
10	1000	12.896831	-0.2585745	139.86719	-0.036239624
10	5000	57.525555	-4.4591255	178.14359	-4.7099915
10	10000	125.86409	+2.2758484	230.74515	+12.474411

[codecov]

Codecov Report

Merging #250 (4682850) into master (7939597) will decrease coverage by 0.05%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master     #250      +/-   ##
==========================================
- Coverage   71.40%   71.34%   -0.05%     
==========================================
  Files         102      102              
  Lines        5604     5604              
==========================================
- Hits         4001     3998       -3     
- Misses       1174     1180       +6     
+ Partials      429      426       -3     

Impacted Files	Coverage Δ
operator/builtin/output/otlp/otlp.go	61.73% <0.00%> (-3.70%)	⬇️

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