feat(Icon): add hands icon in teams theme

[t-proko]

Problem description
Please port the new ubar icons for raise hands to StarDust

[codecov]

Codecov Report

Merging #1567 into master will decrease coverage by 0.06%.
The diff coverage is 100%.

@@            Coverage Diff             @@
##           master    #1567      +/-   ##
==========================================
- Coverage   71.64%   71.57%   -0.07%     
==========================================
  Files         844      844              
  Lines        6891     6864      -27     
  Branches     1960     1947      -13     
==========================================
- Hits         4937     4913      -24     
+ Misses       1948     1945       -3     
  Partials        6        6

Impacted Files	Coverage Δ
...rc/themes/teams/components/Icon/svg/icons/hand.tsx	100% <100%> (ø)
.../components/Icon/svg/ProcessedIcons/icons-hand.tsx	100% <100%> (ø)
...ges/react/src/components/Attachment/Attachment.tsx	42.3% <0%> (-35.48%)	⬇️
packages/react/src/components/Toolbar/Toolbar.tsx	89.47% <0%> (-1.01%)	⬇️
packages/react/src/index.ts	100% <0%> (ø)	⬆️
...hemes/teams/components/Toolbar/toolbarVariables.ts	50% <0%> (ø)	⬆️
...eams/components/Toolbar/toolbarCustomItemStyles.ts
...react/src/components/Toolbar/ToolbarCustomItem.tsx

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[mnajdova]

Please update the changelog under Unreleased -> Features section, something like:

• Add hands icon in Teams theme @t-proko (#1567)

After that, accept the screener differences and it should be good for merge.