[release/v1.50.x] Prepare release 1.50.0 (#7339)

Co-authored-by: otelbot <[email protected]>

[release/v1.49.x] Prepare release 1.49.0 (#7250)

[release/v1.48.x] Prepare release 1.48.0 (#7187)

[release/v1.47.x] Prepare release 1.47.0 (#7085)

[release/v1.46.x] Prepare release 1.46.0 (#7010)

[release/v1.45.x] Prepare release 1.45.0 (#6928)

[release/v1.44.x] Prepare release 1.44.1 (#6868)

[release/v1.44.x] Prepare release 1.44.0 (#6863)

[release/v1.43.x] Prepare release 1.43.0 (#6783)

[release/v1.42.x] Prepare release 1.42.1 (#6706)